TY  - BOOK
AU  - Jaiswal, N.K.
TI  - Opsearch
U1  - 658.403 405 
PY  - 1971///
CY  - India
PB  - O.R.S.
N1  - VOL8 (NO. 1-4)
VOL; 9 (NO.1-2)
ER  -