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- 1991 ,no.6-12. International Labour Documentation. Geneva : International Labour Office, 1991. 2 zv. mesačník. ISSN 0020-7756 [Copy count : 1, currently available 0, at library only 1]
- 1991 ,no.1-5. International Labour Documentation. Geneva : International Labour Office, 1991. 2 zv. mesačník. ISSN 0020-7756 [Copy count : 1, currently available 0, at library only 1]