Columbia subject headings:
Ethics, Modern--20th century.
Heidegger, Martin, 1889-1976--Ethics.
Husserl, Edmund, 1859-1938--Ethics.
Jonas, Hans, 1903-1993--Ethics.
Harvard subject headings:
Ethics, Modern--20th century.
Heidegger, Martin, 1889-1976
Husserl, Edmund, 1859-1938
Jonas, Hans, 1903-1993.
Princeton subject headings:
Ethics, Modern--20th century.
Heidegger, Martin, 1889-1976--Ethics.
Husserl, Edmund, 1859-1938--Ethics.
Jonas, Hans, 1903-1993--Ethics.