@book{55511,
	author = {Wolff, Jonathan.},
	title = {An introduction to political philosophy /},
	publisher = {Oxford University Press,},
	year = {2006.},
	address = {Oxford ;},
	edition = {Rev. ed.},
	url = {http://www.loc.gov/catdir/toc/ecip064/2005033923.html}
}