Columbia subject headings:
Harvard subject headings:
Shoe industry--Switzerland--History--20th century--Congresses.
Shoemakers--Switzerland--History--20th century--Congresses.
Shoes--Switzerland--Design--History--20th century--Congresses.
Princeton subject headings:
Shoe industry--Switzerland--History--20th century--Congresses.
Shoemakers--Switzerland--History--20th century--Congresses.
Shoes--Switzerland--Design--History--20th century--Congresses.