Dennis G. Zill,  2000. <br/><br/>
Differential Equations / 
Dennis G. Zill. 
 - Seventh Edition. 
 - np. 
<br/><br/><label>ISBN: </label>9789812403117 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Singapore--2000--newsprint.