Esser,Martinus <br/><br/>
Differential Equations 
/ by Martinus Esser 
 - Saunders' International Student Edition 
 - Philadelphia:  W. B. Saunders Company,  1968. 
 - ix,249p. 
<br/><br/><label>Dewey Class. No.: </label>515.35  / ESS/D