Cita APA

Hayward, S. C., & Zabin, L. S. Adolescent sexual behaviour and childbearing.

Citación estilo Chicago

Hayward, Sarah C., and Laurie Schwab Zabin. Adolescent Sexual Behaviour and Childbearing. London, Sage Publications.

Cita MLA

Hayward, Sarah C., and Laurie Schwab Zabin. Adolescent Sexual Behaviour and Childbearing.