Zopf, Paul E. Population : An introduction to social demography / Paul E. Zopf, Jr. - 1st ed. - Palo Alto, Calif. : Mayfield Publ. Co., 1984. - xxiv, 501 p. : ill. ; 26 cm. - 304.6 . Includes indexes. Bibliogr.: p. 470-487. ISBN: 087484715X Subjects--Topical Terms: Population.Demography.Population--Social aspects. Dewey Class. No.: 304.6