APA (7th ed.) Citation

Lardner, R. Treat 'em Rough: Letters from Jack the Kaiser Killer.

Chicago Style (17th ed.) Citation

Lardner, Ring. Treat 'Em Rough: Letters from Jack the Kaiser Killer.

MLA (9th ed.) Citation

Lardner, Ring. Treat 'Em Rough: Letters from Jack the Kaiser Killer.

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