000 00283nam a2200121Ia 4500
100 _aUppal, M M
250 _a7th edition
942 _cBK
245 _aA Textbook of engineering chemistry
260 _aKhanna Publishers, New Delhi
_c1979
082 _a660.2 Upp
300 _avii, 610
999 _c13811
_d13811