TY  - BOOK
AU  - Lipsey,Richard G.
TI  - An introduction to positive economics
SN  - 0297775987
U1  - 330.1 21
PY  - 1979///].
CY  - London: 
PB  - Weidenfeld and Nicolson, 
KW  - Economics
N1  - Includes bibliographical references and index
ER  -