World population prospects as assessed in 1973 / - New York : United Nations, 1977. - viii, 183p. : graphs ; - Population studies ; no. 60 [Document] - United Nations ; ST/ESA/SER.A/60 . "United Nations publication: sales no. E.76. XIII.4." Includes bibliographical references. Subjects--Topical Terms: Population.Population forecasting. Dewey Class. No.: 304.62 / WOR/W