World Fertility Survey. (1980). The Guyana fertility survey, 1975: A summary of findings. International Statistical Institute ; World Fertility Survey.
Style de citation Chicago (17e éd.)World Fertility Survey. The Guyana Fertility Survey, 1975: A Summary of Findings. Voorburg, Netherlands : London: International Statistical Institute ; World Fertility Survey, 1980.
Style de citation MLA (8e éd.)World Fertility Survey. The Guyana Fertility Survey, 1975: A Summary of Findings. International Statistical Institute ; World Fertility Survey, 1980.
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