Columbia subject headings:
Jaspers, Karl, 1883-1969--Bibliography.
Jaspers, Karl, 1883-1969.
Harvard subject headings:
Jaspers, Karl, 1883-1969
Jaspers, Karl, 1883-1969--Bibliography.
Princeton subject headings:
Jaspers, Karl, 1883-1969--Bibliography.
Jaspers, Karl, 1883-1969.