DEWEY. (1996). Ddc 21 Dewey Decimal Classification Edition 21 Volume 4. Forest Press.
Lua i Stíl Chicago (17ú heag.)DEWEY. Ddc 21 Dewey Decimal Classification Edition 21 Volume 4. Forest Press, 1996.
Lua MLA (8ú heag.)DEWEY. Ddc 21 Dewey Decimal Classification Edition 21 Volume 4. Forest Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.