Wright, D. Franklin. <br/><br/>
Elementary functions; pre-calculus mathematics / 
[by] D. Franklin Wright [and] Kenneth E. Lindgren. 
 - Lexington, Mass. :  Heath,  c1973. 
 - xi, 338 p. :  illus. ;  25 cm. 
<br/><br/><label>ISBN: </label>0669842850 
<br/><br/><label>LCCN: </label>72004385 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions.
<br/><br/><label>LC Class. No.: </label>QA331.3  QA331.3  / .W75  / .W75 
<br/><br/><label>Dewey Class. No.: </label>515