@book{74830,
	author = {Mulder, Karel. and ebrary, Inc.},
	title = {What is sustainable technology?},
	publisher = {Greenleaf Pub.,},
	year = {2011.},
	address = {Sheffield, South Yorkshire, England :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10650155}
}