TY  - BOOK
AU  - Lipsey,Richard G.
TI  - An introduction to positive economics / 
SN  - 0297782665
U1  - 330.1 LIP 
PY  - 1983///.
CY  - London
PB  - ELBS & Weidenfeld and Nicolson, 
KW  - Economics
KW  - Positive economics - Introduction
ER  -