@book{221601,
	author = {Grootendorst, R. and Eemeren, F. H. van and ebrary, Inc.},
	title = {A systematic theory of argumentation},
	publisher = {Cambridge University Press,},
	year = {2004.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10120487}
}