000 00359nam a2200121Ia 4500
008 240112s9999 xx 000 0 und d
082 _aTRE-S
_b361.3
100 _aTrecker, Harleigh B
245 0 _aSocial group work: Principles and practices
260 _a New York
_bAssociation Press
_c1965
650 _aSocial work; Social problems & services
942 _cBK
999 _c44231
_d44231