APA (7th ed.) Citation

Gray, A. (2004). Darwiniana; Essays and Reviews Pertaining to Darwinism. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gray, Asa. Darwiniana; Essays and Reviews Pertaining to Darwinism. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Gray, Asa. Darwiniana; Essays and Reviews Pertaining to Darwinism. Project Gutenberg, 2004.

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