Gribben, R. J. <br/><br/>
Elementary Partial Differential Equations 
/ by R. J. Gribben 
 - London  Van Nostrand Reinhold Company Ltd.			  1975 
 - viii,121p. 
<br/><br/><label>ISBN: </label>0442300557 
<br/><br/><label>Dewey Class. No.: </label>515.534  / GRI/E