For 339. Coss. Constantius Augustus II, Constans I; Præfect, Philagrius the Cappadocian, for the second time; Indict. xii; Easter-day xvii Kal. Mai, xx Pharmuthi; Æra Dioclet. 55.
CCEL ThML source edition
Philip Schaff
Here endeth the eleventh Letter of holy Athanasius.