Columbia subject headings:
Ethics--History.
Gogarten, Friedrich, 1887-1967.
Personalism--History.
Steinbüchel, Theodor, 1888-1949.
Harvard subject headings:
Ethics--History
Gogarten, Friedrich, 1887-1967.
Personalism--History.
Steinbüchel, Theodor, 1888-1949
Princeton subject headings:
Ethics--History.
Gogarten, Friedrich, 1887-1968.
Personalism--History.
Steinbüchel, Theodor, 1888-1949.