The urban hierarchy of Brazil places Brazil's cities into categories: global cities, national metropolises, regional metropolises, regional capitols (A, B and C), sub-regional centers (A and B) and zone centers (A, B and C).[1]
- ^ "Regiões de influência das cidades 2007". Instituto Brasileiro de Geografia e Estatística (IBGE) (FTP). 10 October 2008. Retrieved 10 September 2011.[dead ftp link] (To view documents see Help:FTP)