Demana, Franklin D., <br/><br/>
Precalculus mathematics :  a graphing approach / 
Franklin Demana, Bert K. Waits, Stanley R. Clemens ; with the assistance of Alan Osborne, Gregory D. Foley. 
 - 3rd ed. 
 - Reading, Mass. :  Addison-Wesley,  c1992. 
 - 269 p. :  ill. (some col.) ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0201526263 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.<br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>QA154.2  / .D43 1992 
<br/><br/><label>Dewey Class. No.: </label>512