Cita APA

Population Reference Bureau. (1973). Options, a study guide to population and the american future. Washinton, D. C.

Citación estilo Chicago

Population Reference Bureau. Options, a Study Guide to Population and the American Future. Washinton, D. C, 1973.

Cita MLA

Population Reference Bureau. Options, a Study Guide to Population and the American Future. Washinton, D. C, 1973.

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