Zill, Dennis G <br/><br/>
Trigonometry 

 - Second 
 - New york  Micgraw-Hall  1990 c. 
 - Verious 
<br/><br/><label>ISBN: </label>0-07-557099-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514  / ZIT