000			00326nam a2200145Ia 4500
008			131111s9999 xx 000 0 und d
100			_aMangal. S.K.
245			_aAudio visual education
260			_aN.D.
260			_bDrya
260			_c1991
300			_a219p.
650			_aEducation _aTeaching methods
763			_a5723
999			_c54850 _d54850