TY  - BOOK
AU  - McConnell,Campbell
TI  - Economics: principles, problems and policies
SN  - 0-07-044913-9
U1  - 330 
PY  - 1978///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - ECONOMIA
KW  - TEORIA ECONOMICA
KW  - 8
ER  -