Wooldridge, Jeffrey M. Introductory econometrics : a modern approach / by Jeffrey M. Wooldridge. - 5th ed. - New Delhi : Cengage Learning , 2013. - xxvi,878p. : figs.,tables etc. ; 23cm . ISBN: 9788131524657 Rs.650.00 Subjects--Topical Terms: ECONOMETRICS Dewey Class. No.: 330.015195 / WOO/I