TY  - BOOK
AU  - Welfling, Weldon .
TI  - Principles of Economics
SN  - 07-069185-1
U1  - 330 
PY  - 1971///
CY  - New York
PB  - McGraw - Hill book company
KW  - Economics
KW  - G-Economics
KW  - Market Economy
N1  - Index
ER  -