APA (7th ed.) Citation

Graebner, T. (2006). Evolution: An Investigation and a Critique. Project Gutenberg.

Chicago Style (17th ed.) Citation

Graebner, Theodore. Evolution: An Investigation and a Critique. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Graebner, Theodore. Evolution: An Investigation and a Critique. Project Gutenberg, 2006.

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