Bernard, Raymon A. <br/><br/>
PRECALUCULUS FUNCTIONS AND GRAPHS/ 
Raymond A. Bernard (and) Michale R. Ziegler. 
 - 2nd ed. 
 - New York  McGraw-Hill.  1989. 
 - xxi, 693 [AI-17] p. ; ill. ;  24cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0070039380