@book{2171,
	author = {Tvedten, Inge.},
	title = {Angola :},
	publisher = {Westview Press,},
	year = {1997.},
	series = {Nations of the modern world. Africa},
	address = {Boulder, Colorado :},
	url = {http://catdir.loc.gov/catdir/enhancements/fy0831/97001284-b.html}
}