Dubrow, Heather <br/><br/>
ory and problems of partial differential equations... 

 - New York  McGraw Hill  1986 
 - 241p. 
<br/><br/><label>ISBN: </label> RS 68.73 
<br/><br/><label>Source: </label> RS 68.73 
<br/><br/><label>Dewey Class. No.: </label>515.353 DUC