Wooldridgre, J. M. (2003). Introductory econometrics. South-Western.
Lua i Stíl Chicago (17ú heag.)Wooldridgre, Jeffrey M. Introductory Econometrics. South-Western, 2003.
Lua MLA (8ú heag.)Wooldridgre, Jeffrey M. Introductory Econometrics. South-Western, 2003.
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