1
Academic Journal
Authors: Villacrés M., Jorge W.
Superior Title: Revista Geográfica, 1960 Jan 01. 26(52), 63-76.
Access URL: https://www.jstor.org/stable/40996565
2
Academic Journal
Authors: Villacres M., Jorge W.
Superior Title: Revista de Ciência Política; v. 5 n. 2 (1971); 91-96 ; 0034-8023
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