Columbia subject headings:
Bulgakov, Sergiĭ, 1871-1944.
Economics--Moral and ethical aspects.
Keynes, John Maynard, 1883-1946.
Smith, Adam, 1723-1790.
Harvard subject headings:
Bulgakov, Sergiĭ, 1871-1944.
Economics
Economics--Moral and ethical aspects.
Ethics
Keynes, John Maynard, 1883-1946.
Smith, Adam, 1723-1790
Princeton subject headings: