Não informado. (1963). Studies in Family Planning. Population Council.
Chicago-Zitierstil (17. Ausg.)Não informado. Studies in Family Planning. New York: Population Council, 1963.
MLA-Zitierstil (8. Ausg.)Não informado. Studies in Family Planning. Population Council, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.