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Lua i Stíl Chicago (17ú heag.)United Nations Fund for Population Activities, L A Peter Gosling, agus Linda Lim. Population Redistribution: Patterns, Policies, and Prospects. New York: United Nations Fund for Population Activities, 1979.
Lua MLA (8ú heag.)United Nations Fund for Population Activities, et al. Population Redistribution: Patterns, Policies, and Prospects. United Nations Fund for Population Activities, 1979.
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