Wooldridge, J. M. (2009). Introductory econometrics: A modern approach (4th ed.). South Western, Cengage Learning.
Lua i Stíl Chicago (17ú heag.)Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. 4th ed. Mason, OH: South Western, Cengage Learning, 2009.
Lua MLA (8ú heag.)Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. 4th ed. South Western, Cengage Learning, 2009.
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