00288nam a2200109 a 450000500170000002000140001708200170003110000260004824500410007426000430011530000200015820251203091724.0  a047159914  a330.051bGRI  aGriffiths, William E.  aLearning and practicing econometrics  aNew YorkbJohn WIley & Sons Inc.c1992  axxv,866p,c24cm