UDK
- Code
-
Meaning
Language
Themes and places
- UDK
-
Universala Dekuma Klasifiko
= UDC | Universal Decimal Classification | In English
= CDU | Classification Décimale Universelle | In French
= UDC | Universele Decimale Classificatie | In Dutch
= CDU | Clasificación Decimal Universal | In Spanish
= UDC | Universel Decimal Classifikation | In Danish