 | International Labour Office - 1908 - 450 lehte
Vol. 7, 1912 contains as a supplement the Resolutions of the VIIth delegates' meeting of the International Association for labour legislation. | |
 | International Labour Office - 1906 - 832 lehte
Vol. 7, 1912 contains as a supplement the Resolutions of the VIIth delegates' meeting of the International Association for labour legislation. | |
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