@book{28934,
	author = {Legaspi Guzmán, Alberto.},
	title = {Control de la mancha amarga ("bitter pit") en manzano selección "rayada" con aspersiones de calcio},
	publisher = {El autor,},
	year = {1975},
	address = {Chapingo, Méx. :},
	note = {c.4 en bodega}
}