Columbia subject headings:
Christian ethics--Lutheran authors.
Christian ethics.
Iwand, Hans Joachim, 1899-1960.
Trinity--History of doctrines--20th century.
Harvard subject headings:
Christian ethics--History--20th century
Iwand, Hans Joachim, 1899-1960--Contributions in Christian ethics.
Trinity--History of doctrines--20th century.
Princeton subject headings: