TY  - BOOK
AU  - Bhattacharya N
ED  - Indian Statistical Institute. Research and Training School
TI  - Average elasticity of variable elasticity engel curve
U1  - 330.72 
PY  - 1973///
CY  - Calcutta
PB  - ISI
KW  - Elasticity
KW  - Engel curve
KW  - Variable
ER  -