Willerding, Margaret F. <br/><br/>
College algebra and trigonometry / 
[by] Margaret F. Willerding [and] Stephen Hoffman. 
 - New York :  Wiley,  [1971] 
 - x, 500 p. :  illus. ;  24 cm. 
<br/><br/><label>ISBN: </label>0471946583 
<br/><br/><label>LCCN: </label>70127672 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.<br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>QA154  QA154  / .W59  / .W59 
<br/><br/><label>Dewey Class. No.: </label>512/.13