TY  - BOOK
AU  - Stilwell, J.A
AU  - Lipsey Richard G & Clarke Rosemary
TI  - Workbook:  To accompany the fourth edition of an introduction to positive economics 
U1  - 330/STI 
PY  - 1975///
CY  - London
PB  - English language book society
KW  - Economices
ER  -