Columbia subject headings:
Greece--History--Peloponnesian War, 431-404 B.C.
Thucydides. History of the Peloponnesian War.
Harvard subject headings:
Greece--History--Peloponnesian War, 431 B.C.-404 B.C.
Thucydides. History of the Peloponnesian War.
Princeton subject headings:
Greece--History--Peloponnesian War, 431-404 B.C.
Thucydides. History of the Peloponnesian War. Book 6-7