TY  - BOOK
ED  - Calcutta.
TI  - Annual report Calcutta productivity council 62-63
U1  - 338.06254 
PY  - 0000///n.d.]
CY  - [S.l.
PB  - s.n.
KW  - Industrial productivity
KW  - Technological innovations
KW  - Economic aspects
ER  -