Não informado. (1945). National Library of Medicine News. National Library of Medicine.
Chicago-Zitierstil (17. Ausg.)Não informado. National Library of Medicine News. Washington: National Library of Medicine, 1945.
MLA-Zitierstil (8. Ausg.)Não informado. National Library of Medicine News. National Library of Medicine, 1945.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.