International Statistical Institute. (1979). Republic of the Philippines fertility survey, 1978: A summary of findings. International Statistical Institute.
Citace podle Chicago (17th ed.)International Statistical Institute. Republic of the Philippines Fertility Survey, 1978: A Summary of Findings. Voorburg, The Netherlands: International Statistical Institute, 1979.
Citace podle MLA (9th ed.)International Statistical Institute. Republic of the Philippines Fertility Survey, 1978: A Summary of Findings. International Statistical Institute, 1979.
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