Não informado. (2001). Studies from the Douglas Smith Foundation for Medical Research of the University of Chicago. University of Chicago.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Studies from the Douglas Smith Foundation for Medical Research of the University of Chicago. Chicago, Ill: University of Chicago, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Studies from the Douglas Smith Foundation for Medical Research of the University of Chicago. University of Chicago, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.