TY  - BOOK
AU  - Wooldridge, Jeffrey M.
TI  - Introductory econometrics : : a modern approach
SN  - 9780324585483
AV  - HB 139 .W66 2009 
PY  - 2009///
CY  - Brazil
PB  - South - Western Cengage Learning
KW  - Econometrics
ER  -