Hingerford, Thomas W <br/><br/>
Precalculus mathematics / 
Thomas W. Hungerford, Richard Mercer, Sybil R. Barrier. 
 - Philadelphia :  Saunders College,  c1980. 
 - xiv, 642 p. :   ill. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0030203465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics 1961- 
<br/><br/><label>LC Class. No.: </label>QA39.2  / .H854 1980