Hall And Knight,  <br/><br/>
Elementry Trignometry 

 - Kottayam  NATIONAL BOOKSTALL  1900 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry--Mathematics--GeometryMathematics
<br/><br/><label>Dewey Class. No.: </label>516.24  / HAL-E