International Federation for Documetation, Classification Research. (2021). International Classification. Verlag Dokumentation.
Citação do estilo Chicago (17ª ed.)International Federation for Documetation, Classification Research. International Classification. Munchen, Alemanha: Verlag Dokumentation, 2021.
Citação MLA (8ª ed.)International Federation for Documetation, Classification Research. International Classification. Verlag Dokumentation, 2021.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.