Dewey, M. (2024). Dewey Decimal Classification: Schedules 200-599 (24th.). OCLC.
Lua i Stíl Chicago (17ú heag.)Dewey, Melvil. Dewey Decimal Classification: Schedules 200-599. 24th. OCLC, 2024.
Lua MLA (9ú heag.)Dewey, Melvil. Dewey Decimal Classification: Schedules 200-599. 24th. OCLC, 2024.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.