Commercial arithmatic and elements of statistics 
By S.C. Chanda 
 - Ludhiana:  Kalyani publishers,  1994/1996. 
 - x,126p. 
<br/><br/><label>Subjects--Index Terms: </label>Arithmetic Commercial arithmatic and elements of statistics 
<br/><br/><label>Dewey Class. No.: </label>513