Não informado. (1931). Journal of Thoracic Surgery. American Association for Thoracic Surgery.
Chicago-referens (17:e uppl.)Não informado. Journal of Thoracic Surgery. Saint Louis, Mo: American Association for Thoracic Surgery, 1931.
MLA-referens (8:e uppl.)Não informado. Journal of Thoracic Surgery. American Association for Thoracic Surgery, 1931.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.