1. Contraception: A History oflts Treatment by the Catholic Theologians and Canonists;Noonan,1965
2. Sex and Society in Islam;Musallem,1983
3. A démographie study of the British ducal families;Hollingsworth;Population Studies.,1957
4. Culture and Human Fertility;Lorimer,1954
5. Births and deaths among Europe's ruling families since 1500;Peller,1965