000			00481ntaaa2200193 4500
003			01
005			20251027202347.0
008			0714s1973 ag 01
040			_aAR-BaBN _bspa _cAR-BaBN _eaacr _dRIC
082			_a301.1520 T71
100			_aTrecker, Harleigh B
245			_aSocial group work
250			_a1 ed.
260			_aNew York : _bAssociation Press, _cc1955, 1967
300			_axiv, 442 p
500			_aLa obra social con grupos
650			_agrupos _9264
942			_cBK
999			_c18475 _d18475