TY  - BOOK
AU  - Sen,Amartya K
TI  - Collective choice and social welfare
SN  - 0444851275
U1  - 36.01:330.163.12 
PY  - 1979///
CY  - Netherland
PB  - Elsevier Science Publishers
KW  - choice
KW  - social welfare
ER  -