Churchill R V; Brown (J W),etc <br/><br/>
Complex variables and applications 

 -  1974 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>28978 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B38, L4;3