APA (7th ed.) Citation

Lardner, R., & Crerie, F. (2005). Treat 'em Rough: Letters from Jack the Kaiser Killer. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lardner, Ring, and Frank Crerie. Treat 'Em Rough: Letters from Jack the Kaiser Killer. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Lardner, Ring, and Frank Crerie. Treat 'Em Rough: Letters from Jack the Kaiser Killer. Project Gutenberg, 2005.

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