The ethics of genetic control : ending reproductive roulette / Joseph Fletcher ; with a new introduction. Fletcher, Joseph F. Human reproduction Moral and ethical aspects. Genetic engineering Moral and ethical aspects. RG556 .F57 1988 176 FIE Includes index. Bibliography: p. [203]-212. Buffalo, N.Y. : Prometheus Books, c1988. c1988. 1988 Text xxi, 218 p. ; eng