Dewey, M. (1979). Dewey decimal classification and relative index (19th. ed.). Forest Press, a division of OCLC Online Computer Library Center.
Lua i Stíl Chicago (17ú heag.)Dewey, Melvil. Dewey Decimal Classification and Relative Index. 19th. ed. Albany, N.Y.: Forest Press, a division of OCLC Online Computer Library Center, 1979.
Lua MLA (9ú heag.)Dewey, Melvil. Dewey Decimal Classification and Relative Index. 19th. ed. Forest Press, a division of OCLC Online Computer Library Center, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.