@book{57596,
	author = { Cigler, Allan J. and Cigler, Allan J.,},
	title = {Interest group politics /},
	publisher = {CQ Press,},
	year = {c2007.},
	address = {Washington, DC :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip074/2006035661.html}
}