Não informado. (1922). Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Venereal Disease Information. Washington: U.S. Public Health Service, Venereal Disease Division, 1922.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division, 1922.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.