Stockton, Doris Skillman. <br/><br/>
Essential precalculus / 
Doris S. Stockton. 
 - London :  Houghton Mifflin,  c1978. 
 - xi, 598, 67 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0395254175 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precalculus.
<br/><br/><label>Dewey Class. No.: </label>512.1  / STE 1978