Rainville Earl D <br/><br/>
Elementary differential equations 

 - 4 
 - New York  Macmillan           1969 
 - xiv,466p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Equations
<br/><br/><label>Dewey Class. No.: </label>B33, K9