World Fertility Survey & Baum, S. (1974). The World Fertility Survey inventory, major fertility and related surveys conducted in Europe, North America and Australia 1960-1973. International Statistical Institute ; World Fertility Survey.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Fertility Survey और Samuel Baum. The World Fertility Survey Inventory, Major Fertility and Related Surveys Conducted in Europe, North America and Australia 1960-1973. Voorburg : London: International Statistical Institute ; World Fertility Survey, 1974.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Fertility Survey और Samuel Baum. The World Fertility Survey Inventory, Major Fertility and Related Surveys Conducted in Europe, North America and Australia 1960-1973. International Statistical Institute ; World Fertility Survey, 1974.