Simmons, George F. <br/><br/>
Differential equations : theory, technique and practice 

 - New Delhi:  Mcgraw Hill Education (India),  2013. 
 - X, 534. 
<br/><br/><label>ISBN: </label>9780070616097 
<br/><br/><label>Dewey Class. No.: </label>515.35  / SIM