@book{1579,
	author = {Simmons, I. G.},
	title = {Changing the face of the earth :},
	publisher = {B. Blackwell,},
	year = {1989.},
	address = {Oxford, UK ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0801/88005031-t.html}
}