International Federation for Documentation\nInternational Federation for Information and Documentation\nUDC Consortium. (2022). Extensions and Corrections to the UDC. International Federation for Documentation.
Citace podle Chicago (17th ed.)International Federation for Documentation\nInternational Federation for Information and Documentation\nUDC Consortium. Extensions and Corrections to the UDC. The Hague, Holanda: International Federation for Documentation, 2022.
Citace podle MLA (8th ed.)International Federation for Documentation\nInternational Federation for Information and Documentation\nUDC Consortium. Extensions and Corrections to the UDC. International Federation for Documentation, 2022.
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