Ross, Debra Anne,  1958- <br/><br/>
Master math :  trigonometry / 
 Trigonometry 
by Debra Anne Ross 
 - Boston, MA :  Course Technology,  2010 
 - viii, 420 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>1598639854 (softcover : alk. paper) 9781598639858  RM54.71 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry<br/>Mathematics