@book{190520,
	author = {Jackman, Robert W., and ebrary, Inc.},
	title = {Power without force},
	publisher = {University of Michigan Press,},
	year = {c1993.},
	series = {Analytical perspectives on politics},
	address = {Ann Arbor :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10395583}
}