@book{78893,
	author = {Schrenk, Michael. and ebrary, Inc.},
	title = {Webbots, spiders, and screen scrapers},
	publisher = {No Starch Press,},
	year = {c2012.},
	address = {San Francisco :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10574793}
}