Sachdeva, Mohinder Singh. Colon classification(Theory and practice) / byMohinder Singh Sachveva. - 1st.Edn. / - New Delhi : Sterling Publishers Pvt.Ltd.cL-10,Green Park Extension,New Delhi-110016 , 1976 - x,267p : Subjects--Topical Terms: Library Science Dewey Class. No.: 2:51:g / L5S;6