W. Slatta, R. 1980. Gaúcho and gaucho: comparative sócio-economic and demographic change in Rio Grande do Sul and Buenos Aires Province, 1869-1920. Estudos Ibero-Americanos. 6, 2 (dez. 1980), 191–202. DOI:https://doi.org/10.15448/1980-864X.1980.2.30624.