Simmons, George, <br/><br/>
Differential equations: Theory techniques & practices  Textual Documents 
by George F.Simmons and G. Krantz 
 - New York  McGraw - Hill book company 
 - 534p:  23cm. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics Differential equations G-Mathematics PG-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>515.35