APA (7th ed.) Citation

Hines, B. (2006). Ducks at a Distance A Waterfowl Identification Guide. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hines, Bob. Ducks at a Distance A Waterfowl Identification Guide. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Hines, Bob. Ducks at a Distance A Waterfowl Identification Guide. Project Gutenberg, 2006.

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