oa.upm.esoa.upm.es/43865/1/INVE_MEM_2015_236279.pdf3.1. The tourism market in Spain Tourism is...
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oa.upm.esoa.upm.es/43865/1/INVE_MEM_2015_236279.pdf3.1. The tourism market in Spain Tourism is deemed to be the most important economic sector in Spain, both in turnover and in number