TY  - BOOK
AU  - Sardana,J.L .
AU  - Sehgal,R.L  .
TI  - Universal decimal classification / 
U1  - 025.432 
PY  - 1983///
CY  - New Delhi : 
PB  - Ess Ess Publications , 
KW  - UNIVERSAL DECIMAL CLASSIFICATION
N1  - Includ index
ER  -