APA (7th ed.) Citation

Thomas, G., & Morgan-Witts, M. (1977). Guernica: The crucible of World War II. Ballantine.

Chicago Style (17th ed.) Citation

Thomas, Gordon, and Max Morgan-Witts. Guernica: The Crucible of World War II. New York: Ballantine, 1977.

MLA (9th ed.) Citation

Thomas, Gordon, and Max Morgan-Witts. Guernica: The Crucible of World War II. Ballantine, 1977.