@book{26806,
	author = {Guimarães, Djalma.},
	title = {Provincia magmatica de Roroimã,},
	publisher = {P. Mendes,},
	year = {1930.},
	series = {[Brazil] Serviço geologico e mineralogico. Boletim},
	address = {Rio de Janeiro,},
	note = {At head of title: Ministerio da Agricultura, industria e commercio.}
}