@book{4694,
	author = {Smithson, Peter. and Addison, Kenneth.},
	title = {Fundamentals of the physical environment /},
	publisher = {Routledge,},
	year = {2008.},
	address = {London ;},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0727/2007037708.html}
}