Ayres, Frank <br/><br/>
Theory and problems of plane and spherical trigonometry 

 - New York  Schaum  1954 
 - 207 p. 
 - Schaum's outline series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>516.24  / A985