000 00281nam a2200121Ia 4500
008 130409s9999 xx 000 0 und d
100 _aB.D DUGGAL
245 _aINT. PHYSICS
260 _bVISHAL PUB. DELHI
_c1981
300 _a734
650 _aCHEMISTRY
_bB.SC.
942 _2ddc
_cBK
999 _c12733
_d12733