000 00321nam a2200121Ia 4500
008 130409s9999 xx 000 0 und d
100 _aS.K GUPTA AND OTHERS
245 _aMECHANICS AND ELECTRONIC DEVICES
260 _bR. Chand & Co.
_aN Delhi
_c2010
300 _a429
650 _aCHEMISTRY
_bB.SC.
942 _2ddc
_cBB
_013
999 _c13115
_d13115