APA (7th ed.) Citation

Downs, R. B., Flanagan, J. T., & Scott, H. W. (1983). Memorable Americans, 1750-1950. Libraries Unlimited.

Chicago Style (17th ed.) Citation

Downs, Robert B., John T. Flanagan, and Harold W. Scott. Memorable Americans, 1750-1950. Littleton, Colo.: Libraries Unlimited, 1983.

MLA (8th ed.) Citation

Downs, Robert B., et al. Memorable Americans, 1750-1950. Libraries Unlimited, 1983.