Plane and spherical trigonometry / 

 - Mandaluyong City :   Books Atbp. Pub. Corp.,   c2009. 
 - vi,   157 p. : ill. ;   22 cm. 
<br/><br/>Includes bibliographical references.<br/> 
<br/><br/><label>ISBN: </label>9789710388776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>Fil. 516.24 P712 2009