Spiegel, Murray, <br/><br/>
Complex Variables  Textual Documents 
By Murray Spiegel, Seymour Lipschutz & Others 
 - 2nd ed. 
 - New Delhi  McGraw Hill Education (India) Private Limited  2010 
 - pg 10.51:  21cm. 
<br/><br/><label>ISBN: </label>9780070085381 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics G- Statistics Complex Variables 
<br/><br/><label>Dewey Class. No.: </label>515.9