Ritger, Paul D. Rose, Nicholas J. <br/><br/>
Differential equations with applications 
/Paul D. Ritger, Nicholas J. Rose 
 - New York  McGraw-Hill  1968 
 - xiv, 545 p. 
<br/><br/>  Differential equations 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations
<br/><br/><label>Dewey Class. No.: </label>515.35  / RIT