APA (7th ed.) Citation

Bangs, J. K. (2010). Jack and the Check Book. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bangs, John Kendrick. Jack and the Check Book. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Bangs, John Kendrick. Jack and the Check Book. Project Gutenberg, 2010.

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