Columbia subject headings:
Harvard subject headings:
Olympiakos Syndesmos Philathlōn Peiraiōs.
Piraeus (Greece)--History.
Soccer teams--Greece--Piraeus--History--Sources.
Princeton subject headings:
Olympiakos Syndesmos Philathlōn Peiraiōs--History--Sources.
Piraeus (Greece)--History--Sources.
Soccer teams--Greece--Piraeus--History--Sources.