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https://www.kaveribooks.com/index.php?p=sr&Uc=9788170004608 kaveribooks.com: Colon Classification, 6th edn. S R Ranganathan Hardbound 9788170004608 s r ranganathan colon classification edn hardbound https://libraryopac.iitj.ac.in/cgi-bin/koha/opac-shelves.pl?op=view&shelfnumber=33 Contents of Matrubhasha › S. R. Ranganathan Learning Hub catalog s r ranganathan learning hub contents catalog