TY  - BOOK
AU  - Lipsey, Richard G
TI  - An introduction to positive economics
SN  - 0297782665
U1  - 330 
PY  - 1983///
CY  - London
PB  - Weidenfeld and Nicolson
KW  - Economics
KW  - Economics -- Problems, exercises, etc
N1  - Include index
ER  -