Petrovsky, I G <br/><br/>
Lectures on partial differential equations 

 - 
 - Dover Publication, New York  1964 
 - 245 
 - .
<br/><br/>  
<br/><br/><label>ISBN: </label>9780486669021  $7.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Partial differential equations
<br/><br/><label>Dewey Class. No.: </label>515.353  PET-L