Petrovskii, I. G.   <br/><br/>
Lectures on partial differential equations 
I. G. Petrovskii 
 - New York  Interscience Publishers  1954 
 - x+245p.  figs 
<br/><br/><label>ISBN: </label>3540404481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Partial Differential Equations
<br/><br/><label>Universal Decimal Class. No.: </label>517.95(042)  / PET