Columbia subject headings:
Harvard subject headings:
Artisans--Germany--Villingen-Schwenningen--History.
Industries--Germany--Villingen-Schwenningen--History.
Skilled labor--Germany--Villingen-Schwenningen--History.
Villingen-Schwenningen (Germany)--Economic conditions.
Working class--Germany--Villingen-Schwenningen--History.
Princeton subject headings:
Schwenningen am Neckar (Germany)--Economic conditions.
Schwenningen am Neckar (Germany)--Social conditions.