@book{25066,
	author = {Polk, William Roe,},
	title = {Violent politics :},
	publisher = {Harper,},
	year = {c2007.},
	address = {New York :},
	edition = {Updated and expanded., 1st Harper Perennial ed.},
	note = {Previous edition: New York : HarperCollins, 2007.},
	url = {http://www.loc.gov/catdir/enhancements/fy0911/2008271906-b.html}
}