Não informado. (1989). Professional Translator & Interpreter. Institute of Translation and Inerpreting.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Professional Translator & Interpreter. London: Institute of Translation and Inerpreting, 1989.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Professional Translator & Interpreter. Institute of Translation and Inerpreting, 1989.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.