TY  - BOOK
AU  - Sardana J L
AU  -  Sehgal R L
TI  - Universal decimal classification :  Structure and methodology
U1  - 2:51M96, M3-;3-;H-;5 (2) 
PY  - 1983///
CY  - New Delhi
PB  - Ess Ess Pub    
KW  - LIBRARY SCIENCE
ER  -