Não informado. (2010). Northwestern University Bulletin. Northwestern University.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Northwestern University Bulletin. Evanston, Ill: Northwestern University, 2010.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Northwestern University Bulletin. Northwestern University, 2010.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.