APA (7th ed.) Citation

Stein, E., & Everhart, A. (2009). Gabriel and the Hour Book. Project Gutenberg.

Chicago Style (17th ed.) Citation

Stein, Evaleen, and Adelaide Everhart. Gabriel and the Hour Book. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Stein, Evaleen, and Adelaide Everhart. Gabriel and the Hour Book. Project Gutenberg, 2009.

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