00465nam a2200169Ia 4500020001800000082001600018100002100034245004200055260003100097300001400128504003300142650003400175650001800209650003100227650001700258700002000275  a0-470-15163-3  a303.4 GAL-M  aGalt, Anthony H. 0aModels and the study of social change  aNew YorkbJohn Wileyc1976  aix, 180p.  aIncludes bibliography, index  aSocial sciences - Methodology  aSocial change  aSocial sciences - Research  aModel theory  aSmith, Larry J.