Wooldridge, J. M. (2009). Introductory econometrics: A modern approach (4th ed.). Cengage Learning.
Chicago-čujuhus (17. p.)Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. 4th ed. Melbourne: Cengage Learning, 2009.
MLA-čujuhus (9. p.)Wooldridge, Jeffrey M. Introductory Econometrics: A Modern Approach. 4th ed. Cengage Learning, 2009.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.