@book{217042,
	author = {Schiffer, Michael B. and ebrary, Inc.},
	title = {Studying technological change},
	publisher = {University of Utah Press,},
	year = {c2011.},
	series = {Foundations of archaeological inquiry},
	address = {Salt Lake City :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10509235}
}