000 00318nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a668
082 _b4 KHA
100 _a"Khanna, B B"
245 0 _aChemistry And Technology
260 _aNew Delhi
260 _bGalgotia Pub.
260 _c1998
300 _a217
999 _c36827
_d36827