ALMQUIST, Z. W. US Census Spatial and Demographic Data in R: The UScensus2000 Suite of Packages. Journal of Statistical Software, [S. l.], v. 37, n. 6, p. 1–31, 2010. DOI: 10.18637/jss.v037.i06. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v037i06. Acesso em: 26 may. 2022.