Greenspan, Donald., <br/><br/>
Introductory numerical analysis of elliptic bounday value problems 

 -  A Harper International Edition. 
 - New York:  Harper and Row,  1966. 
 - ix,164 p.:  ill.;  24cm. 
<br/><br/> A Harper International Edition 
<br/><br/><label>Dewey Class. No.: </label>518.6 GRE