Wooldridge, Jeffrey M. Introductory econometrics : a modern approach / Jeffrey M. Wooldridge - 5th ed. - Mason, OH : South-Western Cengage Learning, c2013. - xxvii, 878 p. : ill. ; 26 cm. ISBN: 9781111534394 Subjects--Topical Terms: Econometrics LC Class. No.: HB139 / .W66 2013