TY  - BOOK
AU  - Lipsey,Richard G.
TI  - An introduction to positive economics
SN  - 297782665
U1  - 330.1 
PY  - 1963/// (1983 printing)
CY  - [s.l.]
PB  - The English Language Book Society
KW  - Economics
N1  - Includes bibliographical references and index
ER  -