000			00282nam a22001217a 4500
082			_a370.78 _bLEH.E
100			_aLehmann
245			_aEducational research / _cby Lehmann
260			_aNew York : _bHolt Rine hart, _c1979.
300			_a433p. :
650			_aResearch
942			_cBK
999			_c624472 _d624472