Hobson, Ernest William <br/><br/>
A treatise on plane and advanced trigonometry 

 - 7th ed 
 - Mineola, NY:  Dover Publications,  2005 
 - xv, 383 p. : ill. ; 23 cm 
<br/><br/><label>ISBN: </label>486441776 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exponential functions
<br/><br/><label>Dewey Class. No.: </label>516.242 HOB