APA (7th ed.) Citation

Fairchild, D., & Fairchild, M. H. (2012). Book of Monsters. Project Gutenberg.

Chicago Style (17th ed.) Citation

Fairchild, David, and Marian Hubbard Fairchild. Book of Monsters. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Fairchild, David, and Marian Hubbard Fairchild. Book of Monsters. Project Gutenberg, 2012.

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