@book{3257,
	author = {Ross, Sheldon M. and ebrary, Inc.},
	title = {Topics in finite and discrete mathematics},
	publisher = {Cambridge University Press,},
	year = {2000.},
	address = {Cambridge ;},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10005031}
}