Rees, Dorothy <br/><br/>
Trigonometry / 
Dorothy Rees 
 - 2nd 
 - Quezon City:  Ken Inc.  1980 
 - 399 pages,  illustrations,  20 cm 
<br/><br/><label>ISBN: </label>978855811 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>LC Class. No.: </label>QA 531 R44   / 1968