TY  - BOOK
AU  - Sehgal, R.L.  .
TI  - Classification: theory & practice (Hindi) / 
SN  - 81-7000-164-1
U1  - 2:12 
PY  - 1994///
CY  - Delhi : 
PB  - Ess Ess Publications , 
KW  - Library- Classification
ER  -