APA aipamena

Simmons, R., & Phillips, J. F. (1990). The proximate operational determinants of fertility regulation behavior. Population Council.

Chicago Style aipamena

Simmons, Ruth, and James F. Phillips. The Proximate Operational Determinants of Fertility Regulation Behavior. New York: Population Council, 1990.

MLA aipamena

Simmons, Ruth, and James F. Phillips. The Proximate Operational Determinants of Fertility Regulation Behavior. Population Council, 1990.