Hawthorn, G. (1970). The sociology of fertility. Collier-Macmillan.
Cita Chicago Style (17a ed.)Hawthorn, Geoffrey. The Sociology of Fertility. London: Collier-Macmillan, 1970.
Cita MLA (9a ed.)Hawthorn, Geoffrey. The Sociology of Fertility. Collier-Macmillan, 1970.
Precaución: Estas citas no son 100% exactas.