APA (7th ed.) Citation

Turtledove & Greenberg. (2001). The best military science fiction of the 20th century. Del Rey Book.

Chicago Style (17th ed.) Citation

Turtledove and Greenberg. The Best Military Science Fiction of the 20th Century. New York: Del Rey Book, 2001.

MLA (8th ed.) Citation

Turtledove and Greenberg. The Best Military Science Fiction of the 20th Century. Del Rey Book, 2001.