Ives, Howard Chapin <br/><br/>
Natural trigonometric functions 

 - 2nd ed. 
 - New York  ; John Wiley And Sons  , 1944 
 - 368p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>516.24  / IVE