TY  - BOOK
AU  - Sesonske,Alexander
TI  - Value and obligation: the foundations of an empiricist ethical theory 
AV  - BD232 S4.9
PY  - 1957///
CY  - BerKeley (E.U.A.)
PB  - University of California
KW  - Ética
KW  - Valores
ER  -