000			00353nam a2200145Ia 4500
008			180613s9999||||xx |||||||||||||| ||und||
020			_a198596332
041			_aen
082			_a515.353
100			_aWILLIAMS, W.E.
245		0	_aPartial Differential Equations.
260			_aGreat Britain _bClarendon press _c1980
300			_aix,357p.
942			_cSR
999			_c79566 _d79566