Não informado. (1922). Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division.
Chicago-viite (17. p.)Não informado. Venereal Disease Information. Washington: U.S. Public Health Service, Venereal Disease Division, 1922.
MLA-viite (8. p.)Não informado. Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division, 1922.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.