@book{152199,
	author = {Bunge, Mario and Sacristán, Manuel, },
	title = {La Investigación científica },
	publisher = {Ariel ,},
	year = {1983},
	series = {Methodos},
	address = {México :},
	edition = {2a ed.},
	note = {Incluye bibliografías e índices}
}