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1
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2
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3“…[Gijón : FIA-UGT, 1998]…”
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4
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5Published 1973“…Bruxelles: FIA; FGTB; CSC…”
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6
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7Published N. 1 (en. 2001)-“…Langreo (Asturias) : SOMA-FIA-UGT, D.L. 2001-…”
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