Coxford, Arthur F. <br/><br/>
Trigonometric and circular functions 
Arthur F. Coxford, Joseph N. Payne 
 - New York  Harcourt Brace Jovanovich  1972 
 - 230 p. ; 23 cm. 
 - Harbrace mathematics .
<br/><br/><label>ISBN: </label>0153540818 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometrical functions