(2003). Dewey Decimal Classification and Relative Index volume 3. OCLC.
Lua i Stíl Chicago (17ú heag.)Dewey Decimal Classification and Relative Index Volume 3. OCLC, 2003.
Lua MLA (8ú heag.)Dewey Decimal Classification and Relative Index Volume 3. OCLC, 2003.
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