Não informado. Transactions and studies of the College of Physicians of Philadelphia.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Transactions and Studies of the College of Physicians of Philadelphia.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Transactions and Studies of the College of Physicians of Philadelphia.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.