000 00344 a2200121 4500
080 _a301.425.301.155
_bP 772 L
245 1 _aLeadership of discussion groups
_bcase material and theory
_cby G.K. Pollak
260 _aNew York
_bSpectrum Publications
_c1975
650 _aLeadership
100 1 _aPollak, G.K.
_d
300 _a390 p.
901 _a142803
999 _c59997
_d59997