APA (7th ed.) Citation

Unknown. (2007). Harrison's Amusing Picture and Poetry Book. Project Gutenberg.

Chicago Style (17th ed.) Citation

Unknown. Harrison's Amusing Picture and Poetry Book. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Unknown. Harrison's Amusing Picture and Poetry Book. Project Gutenberg, 2007.

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