1. Brewer, W. H., 1871, Animal Life in the Rocky Mountains of Colorado: The American Naturalist: v. 5, no. 4: p. 220-223.

BibTeX
@article{brewer1871animal,
    author = "Brewer, W. H.",
    title = "Animal Life in the Rocky Mountains of Colorado",
    year = "1871",
    journal = "The American Naturalist",
    url = "https://doi.org/10.1086/270746",
    doi = "10.1086/270746",
    number = "4",
    pages = "220-223",
    volume = "5"
}

2. 1877, A Idade das Montanhas Rochosas no Colorado: Scientific American: v. 3, no. 67supp: p. 1059-1059.

BibTeX
@article{crossref1877the,
    title = "A Idade das Montanhas Rochosas no Colorado",
    year = "1877",
    journal = "Scientific American",
    url = "https://doi.org/10.1038/scientificamerican04141877-1059dsupp",
    doi = "10.1038/scientificamerican04141877-1059dsupp",
    number = "67supp",
    pages = "1059-1059",
    volume = "3"
}

3. Winwood, H. H., 1885, Idade Geológica das Montanhas Rochosas: Geological Magazine: v. 2, no. 5: p. 240-240.

BibTeX
@article{winwood1885geological,
    author = "Winwood, H. H.",
    title = "Idade Geológica das Montanhas Rochosas",
    year = "1885",
    journal = "Geological Magazine",
    url = "https://doi.org/10.1017/s0016756800152033",
    doi = "10.1017/s0016756800152033",
    number = "5",
    pages = "240-240",
    volume = "2"
}

4. 1889, Novo Trem sobre as Montanhas Rochosas do Colorado: Scientific American: v. 60, no. 1: p. 7-7.

BibTeX
@article{crossref1889new,
    title = "Novo Trem sobre as Montanhas Rochosas do Colorado",
    year = "1889",
    journal = "Scientific American",
    url = "https://doi.org/10.1038/scientificamerican01051889-7",
    doi = "10.1038/scientificamerican01051889-7",
    number = "1",
    pages = "7-7",
    volume = "60"
}

5. Ramaley, Francis, 1907, Plant Zones in the Rocky Mountains of Colorado: Science: v. 26, no. 671: p. 642-643.

BibTeX
@article{ramaley1907plant,
    author = "Ramaley, Francis",
    title = "Plant Zones in the Rocky Mountains of Colorado",
    year = "1907",
    journal = "Science",
    url = "https://doi.org/10.1126/science.26.671.642",
    doi = "10.1126/science.26.671.642",
    number = "671",
    pages = "642-643",
    volume = "26"
}

6. Cobban, W. A, 1951, Scaphitid cefalópodes do Grupo Colorado, 239 do United States Geological Survey, Professional Paper.

BibTeX
@misc{cobban1951scaphitid1,
    author = "Cobban, W. A",
    title = "Scaphitid cefalópodes do Grupo Colorado, 239 do United States Geological Survey, Professional Paper",
    year = "1951",
    howpublished = "p.1-42",
    note = "talkorigins_source = {true}; raw_reference = {Cobban, W. A., 1951, Scaphitid cefalópodes do Grupo Colorado, 239 do United States Geological Survey, Professional Paper: p.1-42.}"
}

7. Cobban, W.A., 1951, Scaphitoid cefalópodes do grupo Colorado: Professional Paper.

BibTeX
@misc{cobban1951scaphitoid,
    author = "Cobban, W.A.",
    title = "Scaphitoid cefalópodes do grupo Colorado",
    year = "1951",
    booktitle = "Professional Paper",
    url = "https://doi.org/10.3133/pp239",
    doi = "10.3133/pp239"
}

8. HEEDE, Burchard H., 1970, MORFOLOGIA DE VALES EM MONTANHAS ROCHOSAS DO COLORADO: International Association of Scientific Hydrology. Bulletin: v. 15, no. 2: p. 79-89.

BibTeX
@article{heede1970morphology,
    author = "HEEDE, Burchard H.",
    title = "MORFOLOGIA DE VALES EM MONTANHAS ROCHOSAS DO COLORADO",
    year = "1970",
    journal = "International Association of Scientific Hydrology. Bulletin",
    url = "https://doi.org/10.1080/02626667009493955",
    doi = "10.1080/02626667009493955",
    number = "2",
    pages = "79-89",
    volume = "15"
}

9. Glanzman, V. M., 1992, Bibliografia de publicações preparadas por pessoal do U.S. Geological Survey sob programas cooperativos com o U.S. Department of Energy e agências predecessoras, 1957-1991, com ênfase em programas de testes nucleares: Relatório de Arquivo Aberto.

BibTeX
@article{doi103133ofr92502,
    author = "Glanzman, V. M.",
    title = "Bibliografia de publicações preparadas por pessoal do U.S. Geological Survey sob programas cooperativos com o U.S. Department of Energy e agências predecessoras, 1957-1991, com ênfase em programas de testes nucleares",
    year = "1992",
    booktitle = "Relatório de Arquivo Aberto",
    url = "https://pubs.usgs.gov/of/1992/0502/report.pdf",
    doi = "10.3133/OFR92502",
    is_oa = "true",
    semanticscholar_citation_count = "1",
    semanticscholar_id = "7902a1c2dac250493b62f357695d5fbdeaf61a84"
}

10. 2010, Colorado e Montanhas Rochosas do Sul: Depósitos de Urânio do Mundo: p. 253-280.

BibTeX
@incollection{crossref2010colorado,
    title = "Colorado e Montanhas Rochosas do Sul",
    year = "2010",
    booktitle = "Depósitos de Urânio do Mundo",
    url = "https://doi.org/10.1007/978-3-540-78943-7\_7",
    doi = "10.1007/978-3-540-78943-7\_7",
    pages = "253-280"
}

11. Boucot, A. e Poinar, G., 2010, Compendium de Comportamento Fóssil.

BibTeX
@article{doi1012019781439810590,
    author = "Boucot, A. e Poinar, G.",
    title = "Compendium de Comportamento Fóssil",
    year = "2010",
    url = "https://www.semanticscholar.org/paper/fa87f7da40567a0fb1dc542e95956fb663930760",
    doi = "10.1201/9781439810590",
    is_oa = "true",
    semanticscholar_citation_count = "126",
    semanticscholar_id = "fa87f7da40567a0fb1dc542e95956fb663930760"
}

12. Prost, Gary L., 2020, Montanhas Rochosas do Colorado: Maravilhas Naturais da América do Norte: p. 137-169.

BibTeX
@incollection{prost2020colorado,
    author = "Prost, Gary L.",
    title = "Montanhas Rochosas do Colorado",
    year = "2020",
    booktitle = "Maravilhas Naturais da América do Norte",
    url = "https://doi.org/10.1201/9781003015468-4",
    doi = "10.1201/9781003015468-4",
    pages = "137-169"
}

13. Nenhum, Colorado e Montanhas Rochosas do Sul: SpringerReference.

BibTeX
@misc{crossrefNonecolorado,
    title = "Colorado e Montanhas Rochosas do Sul",
    year = "Nenhum",
    booktitle = "SpringerReference",
    url = "https://doi.org/10.1007/springerreference\_204996",
    doi = "10.1007/springerreference\_204996"
}