APA (7th ed.) Citation

Brooks, M., Reiner, C., & Salkin, L. (1981). The 2000 year old man. Warner Books.

Chicago Style (17th ed.) Citation

Brooks, Mel, Carl Reiner, and Leo Salkin. The 2000 Year Old Man. New York: Warner Books, 1981.

MLA (9th ed.) Citation

Brooks, Mel, et al. The 2000 Year Old Man. Warner Books, 1981.