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Arbeitslosigkeit und öffentliche Arbeiten
1931
Persistent link: https://www.econbiz.de/10004326600
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Die Arbeitsvermittlung : eine internationale Studie
1934
Persistent link: https://www.econbiz.de/10004326645
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The migration of workers : recruitment, placing and conditions of labour
1936
Persistent link: https://www.econbiz.de/10004638612
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World statistics of aliens : a comparative study of census returns 1910 - 1920 - 1930
1936
Persistent link: https://www.econbiz.de/10004764491