00346    a2200133   4500020001800000082002000018100002700038245001700065260004400082300001600126650002800142650001400170650002800184  a9788131509609  a330.015195bWOO  aWooldridge, Jeffrey M.  aEconometrics  aNew DelhibCengage Learningc2009g2009  a631p.c24cm  aStatistical mathematics  aEconomics  aMathematical principles