Colp, R. (1952). Recent Developments in the Surgery of Peptic Ulcer.
Chicago Style aipamenaColp, Ralph. Recent Developments in the Surgery of Peptic Ulcer. 1952.
MLA aipamenaColp, Ralph. Recent Developments in the Surgery of Peptic Ulcer. 1952.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.