000			00311nam a22001457a 4500
999			_c159052 _d159052
082			_a _b
100			_aWilliam Wiersma
245			_aResearch methods in education/ _cby William Wiersma.
260			_aBoston _bAllyn, _c1986.
300			_a466p.
490			_a
600			_a
650			_a
942			_cBK