APA (7th ed.) Citation

Axelrod, A. (2000). The complete idiot's guide to World War I. Alpha Books.

Chicago Style (17th ed.) Citation

Axelrod, Alan. The Complete Idiot's Guide to World War I. Indianapolis, Ind: Alpha Books, 2000.

MLA (9th ed.) Citation

Axelrod, Alan. The Complete Idiot's Guide to World War I. Alpha Books, 2000.