Churchill, Ruel V., Brown, James Ward <br/><br/>
Complex variables and applications 

 - 5th ed. 
 - New York  McGraw-Hill  1990 
 - xviii,362p, 22cm 
 - McGraw-Hill mathematics series .
<br/><br/><label>ISBN: </label>0071006796 
<br/><br/><label>Dewey Class. No.: </label>515.9,  / D, chu