00262nam a2200109Ia 450000500170000000800410001708200120005810000160007024500170008626000410010330000080014420260224040843.0260224s9999||||xx |||||||||||||| ||und||  a330 CHO  aChow, G.C.  0aEconometrics  aNew York: Mc-Graw-Hill Book Coc1983  a432