@book{119991,
	author = {Campbell, Michael J., and ebrary, Inc.},
	title = {Statistics at square two},
	publisher = {BMJ Books/Blackwell,},
	year = {2006.},
	address = {Malden, Mass. ;},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/strathmore/Doc?id=10233109}
}