Columbia subject headings:
German essays.
Harder, Johannes, 1903-1987--Bibliography.
Harder, Johannes, 1903-1987.
Harvard subject headings:
German essays.
Harder, Johannes, 1903-1987--Bibliography.
Harder, Johannes, 1903-1987.
Princeton subject headings:
German essays.
Harder, Johannes, 1903-1987--Bibliography.
Harder, Johannes, 1903-1987.