APA (7th ed.) Citation

Halliday, J., & Cumings, B. (1988). Korea: The unknown war. Viking.

Chicago Style (17th ed.) Citation

Halliday, Jon, and Bruce Cumings. Korea: The Unknown War. London: Viking, 1988.

MLA (9th ed.) Citation

Halliday, Jon, and Bruce Cumings. Korea: The Unknown War. Viking, 1988.