Nortman, D. (1972). Population and family planning programs: A factbook (4th ed.). Population Council.
Chicago-Zitierstil (17. Ausg.)Nortman, Dorothy. Population and Family Planning Programs: A Factbook. 4th ed. New York: Population Council, 1972.
MLA-Zitierstil (9. Ausg.)Nortman, Dorothy. Population and Family Planning Programs: A Factbook. 4th ed. Population Council, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.