Cohen, David. <br/><br/>
Precalculus :  a problems - Oriented approach / 
David Cohen. 
 - 2nd ed. 
 - St Paul :  West Publishing Co.,  c1987. 
 - xiv, 725 p. 
<br/><br/><label>ISBN: </label>0314262091 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.<br/>Problem solving.
<br/><br/><label>LC Class. No.: </label>QA39.2  / .C64