@book{75261,
	author = {Blackledge, Paul, and ebrary, Inc.},
	title = {Historical materialism and social evolution},
	publisher = {Palgrave,},
	year = {2002.},
	address = {Houndmills, Basingstoke, Hampshire ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10044874}
}