@book{90122,
	author = {Costa, Bernardo Francisco Bruto da.},
	title = {Sleeping sickness; a record of four years' war against it in Principe, Portuguese West Africa;},
	publisher = {Pub. for the Centro colonial, Lisbon, by Baillière, Tindall and Cox,},
	year = {1916.},
	address = {London,}
}