@book{40120,
	author = {Grande Esteban, Ildefonso and Abascal Fernández, Elena},
	title = {Fundamentos y técnicas de investigación comercial},
	publisher = {ESIC},
	year = {1996},
	series = {Universidad},
	address = {España :},
	edition = {3},
	note = {Incluye índice}
}