solutions of partial differential equations / 
Duffy,Dean G. 
 - USA :  Tab books,  c1986 
 - x,542p. :  ill.;  23cm. 
<br/><br/><label>ISBN: </label>0 8306 0412-x 
<br/><br/><label>Subjects--Topical Terms: </label>--mathematics
<br/><br/><label>Dewey Class. No.: </label>515.353 DUF