@book{bookcd303e7e,
title   = {Mapa geoidal do brasil - 1992: versao preliminar},
author = {Blitzkow, Denizar and Cintra, Jorge Pimentel and Fonseca Júnior, Edvaldo Simões da and Lobianco, Maria Cristina Barboza and Fortes, L P S},
year = {1993},
publisher = {Ibge}
}