Hisher, Irwing <br/><br/>
Making of Index Numbers 

 - Kottayam  NATIONAL BOOKSTALL  1900 
 - 538p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>mathemtics--Generalia--index number
<br/><br/><label>Dewey Class. No.: </label>510  / FIS-M