Powers, David L. <br/><br/>
Boundary value problems / 
by David L. Powers 
 - 2d ed. 
 - New York :  Academic Press,  1979 
 - xi, 351 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0125637608 
<br/><br/><label>LCCN: </label>78-57142 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boundary value problems<br/>Differential equations, Partial