@book{10998,
	author = {Serna Gómez, Humberto and Carretero Padilla, Fernando },
	title = {Mercadeo estratégico :},
	publisher = {3R Editores,},
	year = {2009.},
	address = {Bogotá :},
	edition = {1a. reimpresión del 2011}
}