TY  - BOOK
AU  - Burbidge,John L., x
AU  - x
TI  - The principles of production control: x
SN  - x
U1  - 338.0186/BUP 
PY  - 1968///
CY  - Lond.
PB  - Macdonald
KW  - Economics
N1  - x
ER  -