League of Nations. (1926). The official vital statistics of the Republic of Portugal. [s.n.].
Chicagoスタイル(17版)引用形式League of Nations. The Official Vital Statistics of the Republic of Portugal. Geneva: [s.n.], 1926.
MLA(9版)引用形式League of Nations. The Official Vital Statistics of the Republic of Portugal. [s.n.], 1926.
警告: この引用は必ずしも正確ではありません.