Não informado. (1947). Bulletin of the Georgetown University Medical Center. Georgetown University Medical Center.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Georgetown University Medical Center. Washington: Georgetown University Medical Center, 1947.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Georgetown University Medical Center. Georgetown University Medical Center, 1947.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.