TY  - BOOK
AU  - Molgaard, Hansen. R.
AU  - Rigby, Malcolm
ED  - R.R. Freeman, U.S. Environmental Science Services Administration 
ED  - Proceedings on First Seminar on UDC in a Mechanized Retrieval System 
TI  - Proceedings of first seminar on UDC in a mechanized retrieval system
U1  - 025.4 
PY  - 1969///
CY  - Copenhagen
PB  - Danish Centre for Documentation
KW  - Classification
KW  - Universal Decimal - Congresses
KW  - Information storage and retrieval systems - Congresses
ER  -