@book{204897,
	author = {Everitt, Brian. and Wiley InterScience (Online service)},
	title = {Cluster Analysis /},
	publisher = {Wiley,},
	year = {2011.},
	series = {Wiley series in probability and statistics},
	address = {Hoboken :},
	edition = {5th ed.},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9780470977811}
}