precalculus ; a graphing approach/ 
larson, roland E. 
 - lexington :  D.C. Heath & Co.,  c1993 
 - xxx,794p.;  ill.;  26cm. 
<br/><br/><label>ISBN: </label>0669 28500 5 
<br/><br/><label>Subjects--Topical Terms: </label>--mathematics
<br/><br/><label>Dewey Class. No.: </label>537 LAR