Chand, Mohinder Praap . Colon classification : its structure and working / Mohinder Pratap Chand; assisted by B.R. Sachdeva. - New Delhi : Sterling Publishers , 1984. - xiii,139p. : maps ; 22cm . ISBN: NULL (Hb) Subjects--Index Terms: CLASSIFICATION,COLON Dewey Class. No.: 025.435 / CHA/C