@book{20916,
	author = {Porta Casanellas, Jaime and López-Acevedo Reguerín, Martha},
	title = {Edafología :},
	publisher = {Mundi-Prensa,},
	year = {2003.},
	address = {Buenos Aires :},
	edition = {3a ed.},
	note = {Estado de la obra: Librería Técnica.}
}