The collective agreement concluded between the Prokopyevsky District Administration of the Association of the Vostugol and the P...

Description	The collective agreement concluded between the Prokopyevsky District Administration of the Association of the Vostugol and the Prokopyevsky Union of Pitmen.- [B.M .: b.and.], 1931. -.Source of an electronic copy: Kuzbass GNB named afterV.D. Fedorova
Publisher	[Б. м. : б. и.]

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