APA (7th ed.) Citation

Warren, E. R. (1908). Warren on Birds of Northwestern Colorado. Zenodo.

Chicago Style (17th ed.) Citation

Warren, Edward Royal. Warren on Birds of Northwestern Colorado. Zenodo, 1908.

MLA (9th ed.) Citation

Warren, Edward Royal. Warren on Birds of Northwestern Colorado. Zenodo, 1908.

Warning: These citations may not always be 100% accurate.