Não informado. (1977). Epiegram materials. Educational Products Information Exchange Institute.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Epiegram Materials. New York: Educational Products Information Exchange Institute, 1977.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Epiegram Materials. Educational Products Information Exchange Institute, 1977.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.