00425nam a22001457i 4500001001000000005001700010008004100027082002000068100001600088245003500104260004700139300001700186650005800203020001800261SXC01974020260819093653.0260101s1972    ii            000 0 eng d  a515.9 WIL-C222  aWilliams, J10aComplex numbers /cWilliams, J  abGeorge Allen & Unwin Ltd., London,c1972  ap. ;c22 cm. 0aFunctions of complex variables; Analysis; Mathematics  a9780844809458