Columbia subject headings:
Byzantine Empire--Kings and rulers.
Príncipe (Sao Tome and Principe)--Description and travel.
Turkey--Description and travel.
Harvard subject headings:
Adalar İlçesi (Turkey)--Description and travel.
Byzantine Empire--Kings and rulers.
Turkey--Description and travel.
Princeton subject headings:
Adalar İlçesi (Turkey)--Description and travel.
Byzantine Empire--Kings and rulers.
Turkey--Description and travel.