APA (7th ed.) Citation

Harrer, G. A. (1918). Cicero on Peace and War.

Chicago Style (17th ed.) Citation

Harrer, G. A. Cicero on Peace and War. 1918.

MLA (9th ed.) Citation

Harrer, G. A. Cicero on Peace and War. 1918.

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