TY  - BOOK
AU  - Kelejian Harry H
AU  -  Oated Wallace E
TI  - Introduction to econometrics :  Principles and applications
U1  - "X:(B), L4/TD3" 
PY  - 1974///
CY  - New
PB  - York Harper and Row U S A 
KW  - Mathematical Economics
ER  -