@book{48138,
	author = {Mengel, K. and Kirkby, E. A.,},
	title = {Principios de nutrición vegetal.},
	publisher = {International Potash Institute IPI,},
	year = {2000.},
	address = {Basel, Switzerland :},
	edition = {4a edición.},
	note = {Incluye tabla de contenido.}
}