Rider, Paul R. <br/><br/>
Plane and spherical trigonometry. 

 - xiv, 142p.  21 cm. 
<br/><br/><label>ISBN: </label>971-08-1918-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane Trigonometry.<br/>Trigonometry.<br/>Spherical Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>516.24 R544 1971