000 00313nam a22001337a 4500
020 _a0080189653
050 _aMEDREF HM131
_bH3713
100 _aHeap, K
245 _aGroup theory for social workes
260 _aNew York
_bPergamon Press
_c1977
300 _axiv, 252p.
650 _a Social workes
942 _cBK
999 _c17465
_d17465