Columbia subject headings:
Busch, Wilhelm, 1832-1908--Criticism and interpretation.
Busch, Wilhelm, 1832-1908--Religion.
Harvard subject headings:
Busch, Wilhelm, 1832-1908--Criticism and interpretation.
Busch, Wilhelm, 1832-1908--Religion.
Princeton subject headings:
Busch, Wilhelm, 1832-1908--Criticism and interpretation.
Busch, Wilhelm, 1832-1908--Religion.