APA (7th ed.) Citation

Downs, F. (1978). The killing zone: My life in the Vietnam War. Norton.

Chicago Style (17th ed.) Citation

Downs, Frederick. The Killing Zone: My Life in the Vietnam War. New York: Norton, 1978.

MLA (8th ed.) Citation

Downs, Frederick. The Killing Zone: My Life in the Vietnam War. Norton, 1978.