TY  - BOOK
AU  - Richard G. Lipsey
AU  - Chrystal K. Alec 
TI  - An introduction to positive economics 
SN  - 9780198773993
U1  - 330 LIP 
PY  - 1995///
CY  - Oxford
PB  - Oxford University Press, 
KW  - Economics
KW  - International trade
N1  - Spine title: Positive economics
7th ed originally published: London : Weidenfeld and Nicolson, 1989; Includes index
ER  -