Columbia subject headings:
Ethics, Modern--20th century.
Ethics--Germany.
Grisebach, Eberhard, 1880-1945--Ethics.
Kuhlmann, Gerhardt.
Harvard subject headings:
Ethics, Modern--20th century.
Ethics--Germany.
Grisebach, Eberhard, 1880-1945--Views on ethics.
Kuhlmann, Gerhardt.
Princeton subject headings:
Ethics, Modern--20th century.
Ethics--Germany.
Grisebach, Eberhard, 1880-1945.
Kuhlmann, Gerhardt, 1903-1949.