Report IX (2)... The protection of young workers employed underground in coal mines...

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Report IX (2)... The protection of young workers employed underground in coal mines...

Suisse) Conférence internationale du travail (35 ; 1952 ; Genève

Autre Première publication : 1952

Éditions (1)

Report IX (2)... The protection of young workers employed underground in coal mines...

Report IX (2)... The protection of young workers employed underground in coal mines...

International labour office (Annemasse, impr. de Granchamp) (Geneva) · 1952