Powers, David L. <br/><br/>
Boundary value problems / 
David L. Powers. 
 - New York :  Academic Press,  c1972. 
 - x, 238 p. :  ill. 
<br/><br/><label>ISBN: </label>0125637500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems.<br/>Differential equations, Partial.