@book{2503,
	author = {Short, John R.},
	title = {An introduction to political geography /},
	publisher = {Routledge,},
	year = {1993.},
	address = {London ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0909/92024742-d.html}
}