History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
Other incursions into the Megarid were afterwards made by the Athenians annually during the war, sometimes only with cavalry, sometimes with all their forces. This went on until the capture of Nisaea.