Columbia subject headings:
Harvard subject headings:
Education--Germany--History--20th century
Educational sociology.
Educators--Germany--Biography
Mollenhauer, Klaus, 1928-1998.
Mollenhauer, Klaus.
Student movements--Germany--History--20th century.
Princeton subject headings:
Education--Germany--History--20th century.
Educational sociology.
Educators--Germany--Biography.
Mollenhauer, Klaus.
Student movements--Germany--History--20th century.