Nortman, D., & Hofstatter, E. (1980). Population and family planning programs: A compendium of data through 1978. Population Council.
Lua i Stíl Chicago (17ú heag.)Nortman, Dorothy, agus Ellen Hofstatter. Population and Family Planning Programs: A Compendium of Data Through 1978. New York: Population Council, 1980.
Lua MLA (9ú heag.)Nortman, Dorothy, agus Ellen Hofstatter. Population and Family Planning Programs: A Compendium of Data Through 1978. Population Council, 1980.
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