Columbia subject headings:
Harvard subject headings:
Greece--History--1821---Sources.
Kapodistrias, Iōannēs Antōniou, 1776-1831.
Poros Island (Greece)--History--Sources.
Princeton subject headings:
Greece--History--19th century--Sources.
Kapodistrias, Iōannēs Antōniou, 1776-1831.
Poros Island (Greece)--History--Sources.