Columbia subject headings:
Jaspers, Karl, 1883-1969.
Harvard subject headings:
Jaspers, Karl, 1883-1969
Jaspers, Karl, 1883-1969--Criticism and interpretation.
Jaspers, Karl, 1883-1969. Philosophie.
Jaspers, Karl, 1883-1969. Von der Wahrheit.
Jaspers, Karl, 1883-1969. Weltgeschichte der Philosophie.
Princeton subject headings:
Jaspers, Karl, 1883-1969.