Columbia subject headings:
Ahi Evran Veli, 1236?-1329?
Artisans--Turkey--History.
Guilds--Turkey--History.
Merchants--Turkey--History.
Muslim saints--Turkey--Biography.
Turkey--Economic conditions.
Turkey--Social conditions.
Harvard subject headings:
Ahi Evran Veli, 1236?-1329?
Artisans--Turkey--History.
Guilds--Turkey--History.
Merchants--Turkey--History.
Muslim saints--Turkey--Biography.
Turkey--Economic conditions.
Turkey--Social conditions.
Princeton subject headings: