Sperry, Pauline <br/><br/>
Short course in spherical trigonometry 

 - New York  Johnson Publsihing Co.  1928 
 - 60 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514 Sp37s