TY  - BOOK
AU  - Sardana, J. L., Sehgal, R. L.
TI  - Universal decimal classification: structure and methodology
U1  - 025.432 
PY  - 1983///
CY  - New delhi
PB  - Ess ess publications
KW  - Library classification
KW  - Library science
KW  - UDC
ER  -