@book{99347,
	author = {Fernández Fernández, Oscar.},
	title = {Los hongos micorrizicos arbusculares en la fitoextracción de zinc por viola calaminaria /},
	publisher = {El autor,},
	year = {2009.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/111005.pdfT}
}