@book{1865,
	author = {Hough, Michael.},
	title = {Cities and natural process :},
	publisher = {Routledge,},
	year = {2004.},
	address = {London ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip046/2003015520.html}
}