@book{33950,
	author = {Méndez Alfaro, Medardo.},
	title = {Puntuación},
	publisher = {Instituto Nacional de Investigaciones Agrícolas,},
	year = {1979},
	series = {Temas didácticos},
	address = {México, D.F. :},
	edition = {2ed.},
	note = {1c en bodega}
}