Sehgal, R.L. Handbook of Colon classification / by R.L. Sehgal - New Delhi: Ess Ess Publications, 1993. - xii, 285p. ISBN: 8170001617 Subjects--Topical Terms: Colon classificationLibrary scienceLibrary scienceNumber building Dewey Class. No.: 025.4 / SHE/H