Columbia subject headings:
Achaia (Greece)--Antiquities--Congresses.
Achaia (Greece)--History--Congresses.
Elis (Extinct city)--Congresses.
Peloponnesus (Greece : Peninsula)--History--Congresses.
Harvard subject headings:
Achaia (Greece)--Antiquities--Congresses.
Achaia (Greece)--History--Congresses.
Elis (Extinct city)--Congresses.
Peloponnesus (Greece : Peninsula)--History--Congresses.
Princeton subject headings:
Achaia (Greece)--Antiquities--Congresses.
Achaia (Greece)--History--Congresses.
Elis (Extinct city)--Congresses.
Peloponnesus (Greece : Peninsula)--History--Congresses.