APA (7th ed.) Citation

International Federation for Documetation, Classification Research. (2021). International Classification. Verlag Dokumentation.

Chicago Style (17th ed.) Citation

International Federation for Documetation, Classification Research. International Classification. Munchen, Alemanha: Verlag Dokumentation, 2021.

MLA (8th ed.) Citation

International Federation for Documetation, Classification Research. International Classification. Verlag Dokumentation, 2021.

Warning: These citations may not always be 100% accurate.