Ashenfelter, Orley Statistics and econometrics : methods and applications / Orley Ashenfelter, Phillip B. Levine, David J. Zimmerman - New York, N.Y. : Wiley, c2003 - 300 p. : ill. (some col.) Includes index ISBN: 0471107875 Subjects--Topical Terms: SOCIAL SCIENCES--STATISTICSECONOMETRICS LC Class. No.: HA29 / A833S