00351nam a2200145Ia 4500008004100000082001400041100001900055245002800074250000600102260004100108300000800149650002000157650001400177653001400191170901s1970    xx            000 0 und d  a301bB87P  aBroom, Leonard 0aPrinciples of Sociology  a5  aNew YorkbHarper Internationalc1970  a309  aSocial sciences  aSociology  aSociology