00587nam a2200193Ia 4500008004100000020001500041082001700056100002000073245003700093260003600130300000800166650002000174650001400194653002000208653001700228942001200245999001500257952012100272170901s1978    xx            000 0 und d  a0134646363  a302.34bW59I  aWilson, Stephen 0aInformal GroupsbAn Introduction  aNew JerseybPrentice-Hallc1978  a305  aSocial sciences  aSociology  aInformal groups  aSmall groups  2ddccBK  c1413d1413  00102ddc4070aRAUbRAUd2017-10-18eRajsons, DelhifUSDg20.95l0o302.34 W59Ip33714r2017-10-18w1982-07-22yBK