APA (7th ed.) Citation

Samuels, P., Samuels, H., & Remington, F. (1982). Frederic Remington: A biography. Doubleday.

Chicago Style (17th ed.) Citation

Samuels, Peggy, Harold Samuels, and Frederic Remington. Frederic Remington: A Biography. Garden City, N.Y.: Doubleday, 1982.

MLA (9th ed.) Citation

Samuels, Peggy, et al. Frederic Remington: A Biography. Doubleday, 1982.