APA (7th ed.) Citation

Educational Testing Service, Lewis, M., & Rosenblum, L. A. (1975). Friendship and peer relations. Wiley.

Chicago Style (17th ed.) Citation

Educational Testing Service, Michael Lewis, and Leonard A. Rosenblum. Friendship and Peer Relations. New York: Wiley, 1975.

MLA (9th ed.) Citation

Educational Testing Service, et al. Friendship and Peer Relations. Wiley, 1975.