The Elements of Moral Philosophy
Stuart Rachels
Views from the real world : early talks in Moscow, Essentuki, ...
Gurdjieff, Georges Ivanovitch, 1872-1949
Encyclopedia of Applied Ethics
Peter Singer & Dan Callahan
Philosophy: A Text with Readings
Manuel Velasquez
Decoding the Heavens: A 2,000-Year-Old Computer--And the Century-Long ...
Jo Marchant & Josephine Marchant
Principles of Microeconomics
Nicholas Gregory Mankiw