@book{38128,
	author = {Ball, Alan R.},
	title = {Modern politics and government /},
	publisher = {Macmillan,},
	year = {1988.},
	address = {Basingstoke :},
	edition = {4th ed.},
	note = {Previous edition: 1983.},
	url = {http://www.gbv.de/dms/bowker/toc/9780333464137.pdf}
}