TY  - BOOK
AU  - Open University D210
TI  - Introduction to economics course : block 4. Firms and enterprises : units 10, 11 & 12
SN  - 0335122507
U1  - HB/171 
PY  - 1985///
CY  - Milton Keynes
PB  - Open University
KW  - Economics.
ER  -