HAYNES R. THE SOCIO-ECONOMIC DEVELOPMENT OF THE CHILEAN PROVINCES CHILEAN PROVINCES: A CLASSIFICATION BASED ON PRINCIPAL COMPONENT ANALYSIS. RGNG [Internet]. 1976Jan.1 [cited 2024Sep.1];(5):65-7. Available from: https://revistadisena.uc.cl/index.php/RGNG/article/view/39353