@book{212618,
	author = {Polack, Trent. and ebrary, Inc.},
	title = {Focus on 3D terrain programming},
	publisher = {Premier Press,},
	year = {c2003.},
	series = {Premier Press game development series},
	address = {Cincinnati, OH :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10064349}
}