APA (7. basım) Alıntı

International Federation for Documentation. (1961). Universal decimal classification (3rd ed.). British Standards House.

Chicago Style (17. basım) Atıf

International Federation for Documentation. Universal Decimal Classification. 3rd ed. London: British Standards House, 1961.

MLA (9th ed.) Atıf

International Federation for Documentation. Universal Decimal Classification. 3rd ed. British Standards House, 1961.