APA (7th ed.) Citation

Bent, A. (2012). Life Histories of North American Wood Warblers Part One and Part Two. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bent, Arthur. Life Histories of North American Wood Warblers Part One and Part Two. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Bent, Arthur. Life Histories of North American Wood Warblers Part One and Part Two. Project Gutenberg, 2012.

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