Simmons, George F. <br/><br/>
Differential equations with applications and historical notes   
by George F.Simmons 
 - New York  McGraw-Hill  1972 
 - x, 465p. 
 - International Series in Pure and Applied Mathematics .
<br/><br/><label>ISBN: </label>070573751 
<br/><br/><label>LCCN: </label>75-173716 
<br/><br/><label>Dewey Class. No.: </label>515.35  / N727;1