Crown, A. W. <br/><br/>
The language of triangles :  a secondary school trigonometry / 
by A. W. Crown 
 - Oxford :  Pergamon Press,  1965 
 - 3v. :  ill. ;  21 cm. 
 - The commonwealth and international library of science, technology, engineering and liberal studies  Mathemathics division ;  v. 13 .
<br/><br/><label>ISBN: </label> USD 15.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514