APA (7th ed.) Citation

Flug, A., & Litman, S. (1971). A story of World War I. Laidlaw Bros..

Chicago Style (17th ed.) Citation

Flug, Arthur, and Seymour Litman. A Story of World War I. River Forest, Ill.: Laidlaw Bros., 1971.

MLA (9th ed.) Citation

Flug, Arthur, and Seymour Litman. A Story of World War I. Laidlaw Bros., 1971.