Universal classification I : subject analysis and ordering systems : proceedings 4th Internatl. Study Conference on Classification Research, 6th Annual Conference of Gesellschaft fur Klassifikation e.V. Augsburg, 28 June - 2 July 1982, Vol. I - Dahlberg, Ingetraut; Perreault, Jean M., 1931-2001 (INDEKS Verlag, 1982)
volume. 2 edited by Jean M. Perreault and Ingetraut Dahlberg
Keywords: Classification -- Congresses