McKeague, Charles P. <br/><br/>
Trigonometry / 
Charles P. McKeague 
 - [Place of publication not identifed] :  [publisher not identified],  c2013 
<br/><br/> Trigonometry, Trigonometry 
<br/><br/><label>ISBN: </label>9781111826857 
<br/><br/><label>LC Class. No.: </label>QA 531 .M35 2013