000			00419nam a2200133 4500
082			_a371.33 _bWIT.A
100			_aWittich, Walter Arno
245			_aAudio visual materials their nature and use / _cby Walter Arno Wittich and Charles Francis Schuller
260			_aNew York : _bHarper & Row, _c1968.
300			_a554p. :
650			_aAudio visual materials
700			_aSchuller,Charles Francis
942			_cBK _2ddc
999			_c287127 _d287127