00307nam a2200109Ia 4500020001800000082002100018100002200039245007900061250001100140260002900151650001700180  a9780333778227  a330.015195 KOU/T  aKoutsoyiannis, A. 0aTheory of econometrics : an introductory exposition of econometric methods  a2ND ED  bPalgraveaNew Yorkc1973  aEconometrics