00429nam a22001457i 4500001001000000005001700010008004100027082002100068100001600089245005000105260004300155300001700198650005000215020001800265SXC01795720260819093633.0260101s1976    ii            000 0 eng d  a515.35 COP-P222  aCopson, E T10aPartial differential equations /cCopson, E T  abS Chand & Co. Ltd., New Delhi,c1976  ap. ;c22 cm. 0aDifferential equations; Analysis; Mathematics  a9780882753300