Test-tube babies : a guide to moral questions present techniques and future possibilities / edited by William A.W. Walters and Peter Singer. Singer, Peter, 1946- Walters, William A. W., 1933- Fertilization in vitro, Human Moral and ethical aspects. Human embryo Transplantation Moral and ethical aspects. Embryo transfer. Ethics, Medical. Fertilization in vitro. 174.2 WAT Includes bibliographical references. Melbourne : Oxford University Press, 1982. 1982. 1982 Text 165 p. : eng Series 500