Zill, Dennis G., <br/><br/>
A first course in differential equations / 
Dennis G. Zill. 
 - 5th ed. 
 - Boston :  PWS-Kent Pub. Co.,  c1993. 
 - 1 v. (various pagings) :  ill. (some col.) ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0534931545 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>LC Class. No.: </label>QA372  / .Z54 1993 
<br/><br/><label>Dewey Class. No.: </label>515/.35