Nortman, D., & Hofstatter, E. (1980). Population and family planning programs: A compendium of data through 1978. Population Council.
Chicago-viite (17. p.)Nortman, Dorothy, ja Ellen Hofstatter. Population and Family Planning Programs: A Compendium of Data Through 1978. New York: Population Council, 1980.
MLA-viite (9. p.)Nortman, Dorothy, ja Ellen Hofstatter. Population and Family Planning Programs: A Compendium of Data Through 1978. Population Council, 1980.
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