@book{21359,
	author = {FAO and Roose, Eric.},
	title = {Introduction á la gestion conservatoire de l'eau, de la biomasse et de la fertilité des sols (GCES)},
	publisher = {FAO,},
	year = {1994},
	series = {FAO. Boletín de suelos},
	address = {Rome :}
}