000			00509nam a2200181Ia 4500
999			_c13158 _d13158
005			20220524105609.0
008			180712s9999 xx 000 0 und d
020			_a205059856
082			_a371.3 _bWAL _223
100			_aWALLEN, Carl J.
100			_aWallen, LaDonna L.
245			_aEffective classroom management _c/Carl J.Wallen, LaDonna L.Wallen
260			_aBoston _bAllyn and Bacon, Inc. _c1978
300			_avii, 309 p.
500			_aIncludes index.
650			_aClassroom techniques
942			_cS