Não informado. (2004). English in Education. National Association for the Teaching of English.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. English in Education. London: National Association for the Teaching of English, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. English in Education. National Association for the Teaching of English, 2004.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.