TY  - BOOK
AU  - Kyle Barbara
AU  - Vickery B C
TI  - Universal decimal classification: present position and future developments
U1  - 025.4 
PY  - 1961///
CY  - Paris
PB  - Unesco
KW  - Classification
KW  - UDC
N1  - Reprinted from the Unesco Bulletin for libraries, v.15, no.2, March-April, 1961
ER  -