Complex Variables /  
Fisher, Stephen D. 
 - 2nd edition. 
 - Mineola, New York :   Dover Publication Inc. ,  1999 
 - xiv , 427 p.  ill. 427 p.  24 cm 
<br/><br/><label>ISBN: </label>0486406792 
<br/><br/><label>LC Class. No.: </label>QA331.7  / .F57  1999