TY  - BOOK
AU  - Lipsey,Richard G.
TI  - An introduction to positive economics
SN  - 0297775979 :
U1  - 330.1 
PY  - 1975///
CY  - London
PB  - Weidenfeld and Nicolson
KW  - Economics
N1  - Includes bibliographical references and index
ER  -