Nortman, D. (1972). Population and family planning programs: A factbook (4th ed.). Population Council.
Citace podle Chicago (17th ed.)Nortman, Dorothy. Population and Family Planning Programs: A Factbook. 4th ed. New York: Population Council, 1972.
Citace podle MLA (9th ed.)Nortman, Dorothy. Population and Family Planning Programs: A Factbook. 4th ed. Population Council, 1972.
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