000			00343nam a2200133Ia 4500
008			210324s1992 xx 000 0 und d
082			_a661.804 _bMAI/Int
100			_aMaiti, S. _9381952
245			_aIntroduction to petrochemicals.
260			_c1992
520			_aU.G.C. 8th plan.
650			_aNO SUBJECT _9381953
700			_aN.A. _9381954
999			_c294540 _d294540