00305nam a2200109 a 450000500170000002000150001708200130003210000210004524500580006626000480012430000230017220251203110451.0  a0748616381  a170bTAN  aTannsjo,Torbjorn  aUnderstandint EthicsbAn Introduction to Moral Theory  aEdinburghbEdinburgh University Pressc2002  avii,143p.c22cm PB