Columbia subject headings:
Greece--History--War of Independence, 1821-1829.
Philhellenism.
Harvard subject headings:
Greece--History--War of Independence, 1821-1829--Causes.
Greece--History--War of Independence, 1821-1829--Foreign public opinion.
Princeton subject headings:
Greece--History--War of Independence, 1821-1829--Causes.
Greece--History--War of Independence, 1821-1829--Foreign public opinion.