Algebra and trigonometry 
Keedy, Mervin Laverne. 
 - Sixth edition. 
 -  Addison-Wesley,  1993 
 - 1 v. (various pagings) 
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<br/><br/><label>ISBN: </label>0-201-52517-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>Dewey Class. No.: </label>512.13 K24a 1993