TY  - BOOK
AU  - Spencer, Herbert
AU  - Machan, Tibor R., introducer
AU  - Machan, Tibor R., introducer
TI  - The Principles of Ethics, Vol 2
SN  - 0-913966-75-4
U1  - 170/SPE/P 
PY  - 1978///
CY  - 
PB  - Indianaplois: Liberty Fund
KW  - Ethics
KW  - Ethics - evolutionary|Ethics of social life - justice
N1  - 3111; Ethics
ER  -