Não informado. (1933). The Year Book of Dermatology and Syphilology. Year Book Publishers.
Chicago-viite (17. p.)Não informado. The Year Book of Dermatology and Syphilology. Chicago, Ill: Year Book Publishers, 1933.
MLA-viite (8. p.)Não informado. The Year Book of Dermatology and Syphilology. Year Book Publishers, 1933.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.