Precalculus functions and graphs :  a graphing approach 
/por Roland E. Larson ...[et al.] 
 - 2 ed. 
 - New York :  Houghton Mifflin,  1997 
 - 828 p. :  ilus. 
<br/><br/><label>ISBN: </label>0669417289 
<br/><br/><label>LCCN: </label>97194 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cálculo.<br/>Geometría analítica.
<br/><br/><label>Dewey Class. No.: </label>515  / P91