Hobson, E W <br/><br/>
Treatise on Plane and Advanced Trigonometry 

 - New York  Dover  1957 
 - 383p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry--Mathematics--Exponential functionsSeries, Infinite
<br/><br/><label>Dewey Class. No.: </label>514.5  / HOB-T