@book{135588,
	author = {Mittal, Hrishi V. and ebrary, Inc.},
	title = {R graphs cookbook},
	publisher = {Packt Open Source,},
	year = {2011.},
	address = {Birmingham, U.K. :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10442981}
}