TY - BOOK AU - Heer,David M. TI - Society and population T2 - Foundations of modern sociology series AV - HB851 .H4 U1 - 304.6 20 PY - 1968///] CY - Englewood Cliffs, N.J. PB - Prentice-Hall KW - Population KW - Demography N1 - Includes bibliographical references ER -