@book{208236,
	author = {Medina Sierra, Luis Fernando, and ebrary, Inc.},
	title = {A unified theory of collective action and social change},
	publisher = {University of Michigan Press,},
	year = {c2007.},
	series = {Analytical perspectives on politics},
	address = {Ann Arbor :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10360135}
}