APA (7th ed.) Citation

Youniss, J. E., Piaget, J., & Sullivan. (1980). Parents and peers in social development. Univ. of Chicago Pr.

Chicago Style (17th ed.) Citation

Youniss, James E., Jean Piaget, and Sullivan. Parents and Peers in Social Development. Chicago: Univ. of Chicago Pr, 1980.

MLA (8th ed.) Citation

Youniss, James E., et al. Parents and Peers in Social Development. Univ. of Chicago Pr, 1980.