Ayres, Frank <br/><br/>
Trigonometry. :   Including 680 Solved Problems /  
by Frank Ayres .  
 - 1st Ed. 
 - New York:  Mcgraw Hill book Company. 
 - 207 p.:  25 cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label>070026513 
<br/><br/><label>Subjects--Index Terms: </label>Topology. Mathematics 
<br/><br/><label>Dewey Class. No.: </label>514