Cita APA (7th ed.)
Wooldridge, J. M. Introductory econometrics: A modern approach. Cengage.
Cita Chicago (17th ed.)
Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. Cengage.
Cita MLA (9th ed.)
Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. Cengage.
Atenció: Aquestes cites poden no estar 100% correctes.