(2003). Dewey Decimal Classification and Relative Index volume 4. OCLC.
Chicago Style aipamenaDewey Decimal Classification and Relative Index Volume 4. OCLC, 2003.
MLA aipamenaDewey Decimal Classification and Relative Index Volume 4. OCLC, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.