TY  - BOOK
AU  - Gakhar, Attam Parkash.
TI  - Librarian' s guide to broad system of ordering (BSO)
U1  - 025.49 M2 
PY  - 1982///
CY  - New Delhi
PB  - Metropolitan
KW  - Attam Parkash Gakhar
KW  - Classification-programmed instruction,Indexing-techniques
ER  -