Cunniff, Roger L. “The Birth of the Drought Industry: Imperial and Provincial Response to the Great Drought in Northeast Brazil, 1877-1880”. Revista de Ciências Sociais 6, no. 1 e 2 (junho 30, 2020): 65–82. Acessado março 13, 2025. https://periodicos.ufc.br/revcienso/article/view/59946.