Não informado. (1937). Bulletin of the Health Organisation. League of Nations.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of the Health Organisation. Geneva, Suíça: League of Nations, 1937.
MLA(8版)引用形式Não informado. Bulletin of the Health Organisation. League of Nations, 1937.
警告: この引用は必ずしも正確ではありません.