Columbia subject headings:
Labor contract--Germany--History--20th century.
Labor laws and legislation--Germany--History--20th century.
Labor policy--Germany--History--20th century.
Molitor, Erich, 1886-1963.
Harvard subject headings:
Labor contract--Germany--History--20th century.
Labor laws and legislation--Germany--History--20th century.
Labor policy--Germany--History--20th century.
Molitor, Erich, 1886-1963.
Princeton subject headings:
Labor contract--Germany--History--20th century.
Labor laws and legislation--Germany--History--20th century.
Labor policy--Germany--History--20th century.
Molitor, Erich, 1886-1963.