TY  - BOOK
AU  - Vrat,Prem
AU  - Sardana,G.D.
AU  - Sahay,B.S.
TI  - Productivity management: a systems approach 
SN  - 8173191476
PY  - 1998///
CY  - New Delhi
PB  - Narosa Publishing House
KW  - Management
KW  - Industrial management
ER  -