Columbia subject headings:
Leather industry and trade--Turkey.
Leather workers--Turkey--Social conditions.
Tanners--Turkey--Social conditions.
Tanning--Turkey.
Harvard subject headings:
Leather industry and trade--Turkey.
Leather workers--Turkey--Social conditions.
Tanners--Turkey--Social conditions.
Tanning--Turkey.
Princeton subject headings:
Leather industry and trade--Turkey.
Turkey--Economic conditions--1288-1918.