Hobson, Ernest William <br/><br/>
A treatise on plane and advanced trigonometry 
by E.W. Hobson 
 - 7th ed 
 - Mineola, NY  Dover Publications  2005 
 - xv, 383 p. : ill. ; 23 cm 
<br/><br/> Originally published: 7th ed. [Cambridge] : Cambridge University Press, 1928 
<br/><br/><label>ISBN: </label>486441776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exponential functions<br/>Plane trigonometry<br/>Series, Infinite
<br/><br/><label>Dewey Class. No.: </label>516.242 HOB