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Labour and trade unions archives |
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| APA | (1980). Labour and trade unions archives, Munchen: K. G. Saur. | ||||
| MLA | Labour and trade unions archives. Munchen: K. G. Saur, 1980. | ||||
| Harvard | 1980. Labour and trade unions archives. K. G. Saur, | ||||
| Chicago | Labour and trade unions archives. K. G. Saur, 1980. | ||||