APA (7th ed.) Citation

Zelnik, M., Kantner, J. F., Ford, K., & Ford, K. (1981). Sex and pregnancy in adolescence. Sage library of social research.

Chicago Style (17th ed.) Citation

Zelnik, Melvin, John F. Kantner, Kathleen Ford, and Kathleen Ford. "Sex and Pregnancy in Adolescence." Sage Library of Social Research 1981.

MLA (8th ed.) Citation

Zelnik, Melvin, et al. "Sex and Pregnancy in Adolescence." Sage Library of Social Research, 1981.