@book{31011,
	author = {Beltrán L., Virgilio. and México.},
	title = {Para atrapar un fotón /},
	publisher = {FCE },
	year = {1992.},
	series = {La ciencia desde Mexico; },
	address = {México },
	edition = {2a ed.},
	note = {Incluye índice.}
}