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.
But Hippocrates, having drawn out the whole population of Athens, citizens, resident aliens, and all the foreigners then in the city, afterwards arrived at Delium, when the Boeotians had now returned from Siphae; and having encamped his army, proceeded to fortify Delium, the sanctuary of Apollo, in the following manner.