TY  - BOOK
AU  - Richard G. Lipsey
AU  -  
TI  - An introduction to positive economics 
SN  - 0297782657
U1  - 330 LIP 
PY  - 1983///
CY  - London
PB  - Gloucester, 
KW  - Economics
KW  - International trade
N1  - Includes index
ER  -