003610000a22001330004500060000800000082001400008100001800022245002700040260004600067260000900113300000800122490004300130650005400173  a100  a304.6 HEE  aHeer, David M  aSociety and population  aNewdelhi, Prentice- Hall of India Pvt Ltd  c1969  a115  aFoundations of modern sociology series  aPopulation growth/ migration - sociological study