000 00335nam a2200133Ia 4500
008 220201s1990 xx 000 0 eng d
082 _a510
_bSHA
100 _aSharma,VK & Bhatnagar, SC
245 0 _aInvestigatory projects in physics
250 _a4
260 _bNew Delhi : Tata Mc Graw hill
_c1990
300 _a342
942 _2ddc
999 _c85015
_d85015