(1921). Abridged Decimal classification and relativ index for libraries, clippings, notes, etc. / by Melvil Dewey.
Chicago-viite (17. p.)Abridged Decimal Classification and Relativ Index for Libraries, Clippings, Notes, Etc. / by Melvil Dewey. 1921.
MLA-viite (9. p.)Abridged Decimal Classification and Relativ Index for Libraries, Clippings, Notes, Etc. / by Melvil Dewey. 1921.
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