Frejka, Tomas World population projections : a concise history / Tomas Frejka - New York : Population Council (PC) , 1981 - 29p. : ill. ; 22 cm. - Working papers (Population Council. Center for Policy Studies) No. 66 . Includes bibliographical references. Subjects--Topical Terms: Population forecasting Gov. Doc. Class. No.: US PC CPS WP-66