Columbia subject headings:
Christianity--Philosophy.
Philosophy and religion.
Harvard subject headings:
Christianity--Philosophy
Gogarten, Friedrich, 1887-1967.
Grisebach, Eberhard, 1880-1945.
Philosophy and religion.
Princeton subject headings:
Dialectical theology.
Gogarten, Friedrich, 1887-1967.
Griesebach, Eberhard, 1880-1945.
Philosophers--Germany--Correspondence.
Theologians--Germany--Correspondence.