@book{1812,
	author = {Rodríguez González, Ezquiel.},
	title = {Efecto de asperciones foliares de ethrel en cebolla (Allium cepa L.)},
	publisher = {El autor,},
	year = {1990},
	address = {Chapingo, Méx. :},
	note = {D43-89}
}