Universal decimal classification (UDC) revision and publication procedure =
Subtitle: Procedure de revision et de publication de la classification decimale universelle (CDU) = Das Verfahren bei bearbeitung und veröffentlichung der universellen Dezimalklassifikation (DK).
Contributors: Dubuc, René.; Fill, Karl.
Series: FID publication -- 429
Publisher: [s.n.]
Published: 1968
Place of publication: The Hague
Language: eng
Number of pages: 53
Subjects: Classification, Universal decimal.
Other titles: Procedure de revision et de publication de la classification decimale universelle.; Das Verfahren bei arbeitung und veröffentlichung der universellen Dezimalklassifikation.
Notes: Title page and text in English, French and German.

"All sections, incl. section 8 Copyright, in force since 1 January 1968."

"English original approved by FID/CCC and FID Council."

"Traduction française par R. Dubuc."

"Deutsche Übersetzung von K. Fill."

Preceded by 3 issues dated 1953, 1955, and 1961; referred to as a "revision" and in the FID publications catalogue, Jan. 1970, as "4th ed."