Hawthorn, G. The sociology of fertility. Collier-Macmillan.
Cita Chicago Style (17a ed.)Hawthorn, Geoffrey. The Sociology of Fertility. Dublin: Collier-Macmillan.
Cita MLA (8a ed.)Hawthorn, Geoffrey. The Sociology of Fertility. Collier-Macmillan.
Precaución: Estas citas no son 100% exactas.