LECTURES in differential equations 

 - New York  Van Nostrand .Reinhold  1969 
 - vi, 199 p. 
 - Van Nostrand Mathematical Studies; No.18 .
<br/><br/> Includes reference 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations
<br/><br/><label>Dewey Class. No.: </label>515.35  / LEC