Columbia subject headings:
Harvard subject headings:
Ērakleion (Greece)--Civilization.
Ērakleion (Greece)--Description and travel.
Ērakleion (Greece)--History.
Princeton subject headings:
Ērakleion (Greece)--Civilization.
Ērakleion (Greece)--Description and travel.
Ērakleion (Greece)--History.