APA (7th ed.) Citation

Abbott, E. H. (2006). Peace on Earth, Good-will to Dogs. Project Gutenberg.

Chicago Style (17th ed.) Citation

Abbott, Eleanor Hallowell. Peace on Earth, Good-will to Dogs. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Abbott, Eleanor Hallowell. Peace on Earth, Good-will to Dogs. Project Gutenberg, 2006.

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