Columbia subject headings:
Harvard subject headings:
Domestic relations--Germany
Families in literature.
German literature--19th century--History and criticism
German literature--20th century--History and criticism
Middle class families in literature.
Middle class families--Germany--History--19th century.
Middle class families--Germany--History--20th century.
Nuclear families--Germany--History--19th century.
Nuclear families--Germany--History--20th century.
Princeton subject headings:
Middle class families--History.
Nuclear families--History.