Ratti, J. S.  <br/><br/>
Precalculus   :a unit circle approach 

 - 2nd ed. 
 - Boston:  Pearson Education Inc,.  2014. 
 - xix, 955 p. 
<br/><br/><label>ISBN: </label>9780321825391 (13) 032182539X (10) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Algebra <br/>Algebra Textbooks <br/>Functions<br/>Precalculus<br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>515  / R17