@book{217765,
	author = {Cowles, Michael, and ebrary, Inc.},
	title = {Statistics in psychology},
	publisher = {L. Erlbaum Associates,},
	year = {c2001.},
	address = {Mahwah, N.J. :},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10118424}
}