000			00310nam a2200145Ia 4500
008			221121s9999 xx 000 0 und d
041			_aENGLISH
082			_bRAG
100			_aRAGHAVAN
245		0	_aTEACHING OF SCIENCE
260			_bAPH PUBLICATION
300			_a88
650			_aSCIENCE
942			_cREF
999			_c177641 _d177641