TY  - BOOK
AU  - Graaff,J Dev
TI  - Theoretical welfare economics
SN  - 070690883X
U1  - 330.831 
PY  - 1957///
CY  - New Delhi
PB  - Vikas Publishing House Pvt Ltd
KW  - welfare economics
KW  - technology
KW  - Foreign trade
ER  -