APA (7th ed.) Citation

Chapman, F. M., & Sawyer, E. J. (2010). What Bird is That? A Pocket Museum of the Land Birds of the Eastern United States Arranged According to Season. Project Gutenberg.

Chicago Style (17th ed.) Citation

Chapman, Frank M., and Edmund J. Sawyer. What Bird Is That? A Pocket Museum of the Land Birds of the Eastern United States Arranged According to Season. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Chapman, Frank M., and Edmund J. Sawyer. What Bird Is That? A Pocket Museum of the Land Birds of the Eastern United States Arranged According to Season. Project Gutenberg, 2010.

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