Columbia subject headings:
Authors, German--20th century--Biography.
Biographies.
Hacks, Peter, 1928-2003.
Harvard subject headings:
Authors, German--20th century--Biography
Dramatists, German--20th century--Biography.
Hacks, Peter, 1928-2003--Criticism and interpretation.
Hacks, Peter, 1928-2003.
Princeton subject headings:
Authors, German--20th century--Biography.
Hacks, Peter, 1928-2003.