000 00262nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aChopra, Ramesh
245 0 _aLearn And Teach Physics
260 _aDelhi
_bAuthorspress
_c2006
300 _a222p.
942 _cBK
999 _c13697
_d13697