International Labor Office. (1959). Reduction of hours of work. Sevneth item on the agenda. s.n.
Chicagoスタイル(17版)引用形式International Labor Office. Reduction of Hours of Work. Sevneth Item on the Agenda. Geneva: s.n, 1959.
MLA(9版)引用形式International Labor Office. Reduction of Hours of Work. Sevneth Item on the Agenda. s.n, 1959.
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