Columbia subject headings:
Authors, German--20th century.
Böll, Heinrich, 1917-1985--Criticism and interpretation.
Harvard subject headings:
Authors, German--20th century.
Böll, Heinrich, 1917-1985--Criticism and interpretation.
Princeton subject headings:
Authors, German--20th century.
Böll, Heinrich, 1917-1985--Criticism and interpretation.