004280000a22001330004500060000800000082001200008100002300020100002000043245009600063260004200159260000900201300000800210650007600218  a100  a301 PAR  aBurgess,  Ernest W  aPark,  Robert E  aIndroduction to the science of sociology: Including an index to basic sociological concepts  a Chicago, University of chicago press  c1970  a460  aScience of sociology/ Sociological concepts/ Sociology/ Society- group/