Wooldridge, Jeffrey M. Introductory econometrics, A modern approach / By Jeffrey M Wooldridge. - 4th ed. - Australia : Cengage Learning, 2009. - 863p. ; 00 cm. ISBN: 9780324788907 Subjects--Topical Terms: ECONOMICS.ECONOMETRICS. Dewey Class. No.: 330.0182 / WOO