Gribben, R.J <br/><br/>
Elementary partial differential equations 
R.J. Gribben 
 - New York  Van Nostrand  1975 
 - viii  121 
 - VNR new mathematics library .
<br/><br/><label>ISBN: </label>0442300565 
<br/><br/><label>Dewey Class. No.: </label>10.02  / GRIB