APA (7th ed.) Citation

Newman, R., Long, E. B., & Nevins, A. (1956). The Civil War. Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Newman, Ralph, E. B. Long, and Allan Nevins. The Civil War. New York: Grosset & Dunlap, 1956.

MLA (9th ed.) Citation

Newman, Ralph, et al. The Civil War. Grosset & Dunlap, 1956.