Buchanan, Herbert E.  <br/><br/>
Plane trigonometry / 
Herbert E. Buchanan and Pauline Sperry. 
 - New York :  Johnson publishing company,  c 1926. 
 - Various p. :  ill. ;  24 cm. 
<br/><br/> Include index. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry.
<br/><br/><label>Dewey Class. No.: </label>514.5 / B852p