Columbia subject headings:
Harvard subject headings:
Heidegger, Martin, 1889-1976
Marcuse, Herbert, 1898-1979
Parsons, Talcott, 1902-1979
Technology--Moral and ethical aspects
Tillich, Paul, 1886-1965
Princeton subject headings:
Heidegger, Martin, 1889-1976.
Marcuse, Herbert, 1898-1979.
Parsons, Talcott, 1902-1979.
Technology--Moral and ethical aspects.
Tillich, Paul, 1886-1965.