Berg, Paul W., <br/><br/>
Elementary partial differential equations / 
By p. w. Berg and j. l. McGregor. 
 - 421 páginas 
 - Holden-day series in mathematics .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecuaciones diferenciales parciales
<br/><br/><label>LC Class. No.: </label>QA374  / B47