TY  - BOOK
AU  - Grolier,Eric De
TI  - A study of general categories applicable to classification and coding in documentation
U1  - 029.7 GRO  
PY  - 1962///.
CY  - Paris : 
PB  - Unesco, 
KW  - Documentation coding
KW  - Library classification
N1  - Includes notes.
ER  -