APA (7th ed.) Citation

Hall, E. R. (2011). A New Pocket Gopher (Genus Thomomys), from Eastern Colorado. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hall, E. Raymond. A New Pocket Gopher (Genus Thomomys), from Eastern Colorado. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Hall, E. Raymond. A New Pocket Gopher (Genus Thomomys), from Eastern Colorado. Project Gutenberg, 2011.

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