@book{66030,
	author = {Harden, Leland. and Heyman, Bob,},
	title = {Marketing by the numbers :},
	publisher = {Amacom-American Management Association,},
	year = {2010.},
	address = {New York :},
	url = {http://portal.igpublish.com/iglibrary/search/AMAB0000670.html}
}