@book{12758,
	author = {Wellington, Patricia and Bonnett Vélez, Fabián,},
	title = {Por una atención eficaz al cliente :},
	publisher = {Panamericana Editorial,},
	year = {2015.},
	address = {Bogotá :},
	edition = {Editor Mauricio Gaviria Carvajal},
	note = {Título original : Effective customer care: understand needs. Improve service. Build relationships}
}