@book{94662,
	author = {Williams, Tim, and ebrary, Inc.},
	title = {Positioning for professionals},
	publisher = {Wiley,},
	year = {c2010.},
	series = {Wiley advisor},
	address = {Hoboken, N.J. :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10399050}
}