TY - BOOK ID - 75514686 TI - Towards a theory for UDC: essays aimed at structural understanding and operational improvement PY - 1969 SN - 0851570798 PB - London Bingley DB - UniCat KW - Classification, Universal decimal KW - 025.45 UDC KW - 025.45 UDC Classificaties met decimale notaties en cijfers--UDC KW - Classificaties met decimale notaties en cijfers--UDC KW - Universal decimal classification KW - Classification KW - Classification, Decimal KW - Books KW - Subject indexing UR - https://www.unicat.be/uniCat?func=search&query=sysid:75514686 AB - ER -