Não informado. (1963). English Language Notes. University of Colorado, Department of English.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. English Language Notes. Boulder, Colo: University of Colorado, Department of English, 1963.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. English Language Notes. University of Colorado, Department of English, 1963.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.