Não informado. (1952). International planned parenthood news. International Planned Parenthood Federation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Planned Parenthood News. London: International Planned Parenthood Federation, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Planned Parenthood News. International Planned Parenthood Federation, 1952.
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