History of the Peloponnesian War
Thucydides
Thucydides. The history of the Peloponnesian War, Volume 1-2. Dale, Henry, translator. London: Heinemann and Henry G. Bohn, 1851-1852.
Sitalecs then, being this man's son, the Athenians made their ally, wishing him to join them in conquering the Thrace-ward towns and Perdiccas.