000			00320nam a2200121Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aEpstein Bernard
245		0	_aPartial Differential Equations An Introduction
260			_bTata Mcgrawhill Publishers _c1962
300			_a273p
650			_aMathematics
942			_cBK
999			_c30818 _d30818