González, M.J.G. and Pascual, M.-E.V. 2018. THE APPLICATION OF PRINCIPAL COMPONENT ANALYSIS (PCA) FOR THE STUDY OF THE SPANISH TOURIST DEMAND. Quaestiones Geographicae. 37, 4 (Dec. 2018), 43–52. DOI:https://doi.org/10.2478/quageo-2018-0036.