Columbia subject headings:
Apologetics--History--20th century.
God--History of doctrines.
God.
Küng, Hans, 1928-2021. Christ sein.
Küng, Hans, 1928-2021. Existiert Gott?
Harvard subject headings:
Catholic Church--Doctrines--Catholic authors.
Catholic Church--Doctrines--History.
Küng, Hans, 1928- Christ sein.
Küng, Hans, 1928- Existiert Gott?
Princeton subject headings: