@book{36144,
	author = {Norman, Nick. and Whitfield, Gavin.},
	title = {Geological journeys :},
	publisher = {Struik ;},
	year = {2006.},
	address = {Cape Town :},
	note = {At head of title: De Beers.},
	url = {http://catdir.loc.gov/catdir/toc/fy0709/2007325265.html}
}