Não informado. (1931). Cleveland Clinic Quarterly. Cleveland Clinic Educational Foundation.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Cleveland Clinic Quarterly. Cleveland, Ohio: Cleveland Clinic Educational Foundation, 1931.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Cleveland Clinic Quarterly. Cleveland Clinic Educational Foundation, 1931.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.