Larson, Ron <br/><br/>
Precalculus 

 - 6th ed. 
 - Boston  Houghton Mifflin Company  2007 
<br/><br/><label>ISBN: </label>0-618-64346-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Boston
<br/><br/><label>LC Class. No.: </label>QA 39.3 .L37/