00269nam a2200109Ia 4500082001900000100001800019245006800037260003400105300001000139500000500149700000500154  a515.9bC785.IT  aCopson, E. T.  aIntroduction to the theory of functions of a complex variableb  aOxfordbClarendon Pressc1962  a448p.  a  a