Briggs, William,  1861-1932. <br/><br/>
The tutorial trigonometry / 
by William Briggs and G.H. Bryan. 
 - 3rd. ed. 
 - London :  W.B. Clive,  1928 [ Reprinted 1957 ] 
 - 311 p. :  ill. ;  17 cm. 
<br/><br/> "Answers": p. 315-324. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>514  / BRT 1957