000 00288nam a22001217a 4500
008 180227b xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a159.9
100 _a48
101 _aPSI
245 _aGroup processes an introduction to group dynamics
_cLuft,J
942 _2udc
_cBK
999 _c43627
_d43627