Berelson, Bernard Governmental intervention on fertility : what is ethical? / Bernard Berelson & Jonathan Lieberson - New York : Population Council (PC) , 1979 - 68p. : ill. ; 22 cm. - Working papers (Population Council. Center for Policy Studies) No. 48 . Includes bibliographical references. Subjects--Topical Terms: Population policyFertility, HumanBirth control Gov. Doc. Class. No.: US PC CPS WP-48