Search Results       Your search for [author]Richards, Toni returned 1 record.           Comparative analysis of fertility, breastfeeding and contraception : a dynamic model. by Richards, Toni; Washington, D. C.: National Academy Press, 1983. Subject: Fertility, Human -- Mathematical models; Breastfeeding -- Mathematical models; Contraception -- Mathematical models.          Add to Book Cart Relevance: 17.36%