Columbia subject headings:
Harvard subject headings:
Labor movement--Switzerland--History--20th century.
Occupational physicians--Switzerland--Biography.
Socialists--Switzerland--Biography.
Switzerland--History--20th century.
Tobler Max, 1876-1929--Childhood and youth.
Tobler Max, 1876-1929--Political and social views.
Youth movements--Switzerland--History--20th century.
Princeton subject headings:
Labor movement--Switzerland--History--20th century.
Occupational physicians--Switzerland--Biography.
Socialists--Switzerland--Biography.
Switzerland--History--20th century.
Tobler, Max, 1876-1929--Childhood and youth.
Tobler, Max, 1876-1929--Political and social views.
Youth movements--Switzerland--History--20th century.