TY  - BOOK
AU  - Sumner,L.W..
TI  - Welfare, happiness and ethics / 
SN  - 0198238789
U1  - 170 
PY  - 1996///
CY  - Oxford : 
PB  - Clarendon Press , 
KW  - ETHICS
N1  - This book simeltineously published from New york,Athens,Auekland,Bankok
ER  -