Não informado. (1922). Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division.
Chicagoスタイル(17版)引用形式Não informado. Venereal Disease Information. Washington: U.S. Public Health Service, Venereal Disease Division, 1922.
MLA(8版)引用形式Não informado. Venereal Disease Information. U.S. Public Health Service, Venereal Disease Division, 1922.
警告: この引用は必ずしも正確ではありません.