@book{222067,
	author = {Dong, F. M., and Koh, K. M. and ebrary, Inc.},
	title = {Chromatic polynomials and chromaticity of graphs},
	publisher = {World Scientific Pub.,},
	year = {2005.},
	address = {New Jersey ;},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10126029}
}