Hornsby, John. <br/><br/>
A graphical approach to precalculus with limits :  a unit circle approach / 
John Hornsby;  
 - 6th ed. 
 - Boston :   Pearson,  2015. 
 - xx,965, 69 p.:  illustrations (chiefly color) ;   28 cm. 
<br/><br/><label>ISBN: </label>0321900820 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions--Textbooks.
<br/><br/><label>LC Class. No.: </label>QA331.3  / HOR 2015