@book{148815,
	author = {Watts, Duncan. and ebrary, Inc.},
	title = {Pressure groups},
	publisher = {Edinburgh University Press,},
	year = {c2007.},
	series = {Politics study guides},
	address = {Edinburgh :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10435306}
}