@book{33715,
	author = {Warner, Julian, and ebrary, Inc.},
	title = {Human information retrieval},
	publisher = {MIT Press,},
	year = {2009.},
	series = {History and foundations of information science},
	address = {Cambridge, MA :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10347248}
}