Zill, Dennis G. <br/><br/>
Differential Equations: With boundary value problems/ 
Dennis G. Zill 
 - 7th ed. 
 - USA:  Cengage learning  2009. 
 - xiv, 526p. :  ill. ;  28 cm. 
<br/><br/> Includes Bibliography. 
<br/><br/><label>ISBN: </label>9780495108368 0495108367 
<br/><br/><label>LCCN: </label>98043760  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential Equation.<br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>515.35