000
00248nam a2200109Ia 4500
100
_a
Chu, Kong
942
_c
BK
654
_a
245
_a
Principles of econometrics
260
_a
Pennsylvania
_b
Internaional textbook Company
_c
1968
082
_a
330
999
_c
396262
_d
396262
041
_a
eng