000 00289nam a2200109Ia 4500
008 231219s1989 xx 000 0 und d
041 _aeng
100 _aG. L.VISHIN
245 _aA NEW APPROACH TO TEACHING OF SCIENCE
260 _aLUDHIANA
_bVINOD BOOK SHOP LUDHIANA
_c1989
300 _a80p
999 _c344079
_d344079