APA (7th ed.) Citation

Halberstadt, H. (1988). Green Berets: Unconventional warriors. Presidio Press.

Chicago Style (17th ed.) Citation

Halberstadt, Hans. Green Berets: Unconventional Warriors. Novato, Calif.: Presidio Press, 1988.

MLA (9th ed.) Citation

Halberstadt, Hans. Green Berets: Unconventional Warriors. Presidio Press, 1988.