APA (7th ed.) Citation

Shermer, D. (1973). World War I. Ed. by S.L. Mayer.

Chicago Style (17th ed.) Citation

Shermer, David. World War I. Ed. by S.L. Mayer. 1973.

MLA (9th ed.) Citation

Shermer, David. World War I. Ed. by S.L. Mayer. 1973.

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