TY  - BOOK
AU  - Baldev Raj
AU  - Aman Ullah,
TI  - Econometrics: Varying coefficients approach 
U1  - 330.182 
PY  - 1981///
CY  - London
PB  - Croom Helm
KW  - Econometrics
KW  - Regression analysis
KW  - Economics, Mathematical
N1  - Includes bibliographical references and index
ER  -