R. Kent Nagle, Edward B. Saff & Arthur David Snider - <br/><br/>
Fundamentals Of Differential Equations 

 - 7th ed 
 -   Pearson Addison-Wesley,  Greg Tobin  ©2008 
<br/><br/><label>ISBN: </label>9780321388414  388388 
<br/><br/><label>Dewey Class. No.: </label>515.35/NAG