Churchill, Ruel Vance,  1899- <br/><br/>
Complex variables and applications / 
Ruel V. Churchill, James W. Brown, Roger F. Verhey 
 - 3rd ed. 
 - New York :  McGraw-Hill Book,  1974 
 - x, 332 p. ;  23 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions of complex variables