00442nam a2200181Ia 4500008004100000020001800041082001900059100001900078245002400097250000600121260004100127300000800168650001400176650002000190653001700210653001500227700001800242170901s1997    xx            000 0 und d  a9780071259644  a330.1543bJ51E  aJohnston, Jack 0aEconometric Methods  a4  aNew YorkbMcGraw-Hill Book Co.c1997  a531  aEconomics  aSocial sciences  aEconometrics  aMehodology  aDiNardo, John