Kells, Lyman M  <br/><br/>
Plane and spherical trigonometry  

 - 2nd ed. 
 - New York:  McGraw - Hill Book Company, Inc.,  1940. 
 - xv,490p.; 
<br/><br/> Purchased by Bookazone (Pvt) Ltd. 
<br/><br/><label>ISBN: </label>9781179533346 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry.  <br/>Spherical trigonometry.<br/>Trigonometria.
<br/><br/><label>Dewey Class. No.: </label>519  / K24