00278nam a2200109 a 450000500170000008200200001710000200003724500330005726000410009030000230013163000140015420251202164229.0  a330.015195bCHO  aZellner, Arnold  aBasic issues in econometrics  aChicagobUniversity of Chicagoc1984  a334 p.c24 cm.bPB  aEconomics