Não informado. (1949). Yearbook of medicine. Year Book Medical Publishers.
Chicago-viite (17. p.)Não informado. Yearbook of Medicine. Chicago, Ill: Year Book Medical Publishers, 1949.
MLA-viite (8. p.)Não informado. Yearbook of Medicine. Year Book Medical Publishers, 1949.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.