Columbia subject headings:
Barth, Karl, 1886-1968.
Holy Spirit--History of doctrines--20th century.
Schaeder, Erich, 1861-1936.
Harvard subject headings:
Barth, Karl, 1886-1968
Holy Spirit--History of doctrines--20th century
Schaeder, Erich, 1861-1936
Princeton subject headings: