@book{19809,
	author = {Rodríguez, Nora E. and Rainero, Héctor P. and INTA. E.E.A.Manfredi. },
	title = {Malezas problema /},
	publisher = {INTA.E.E.A.,},
	year = {1998.},
	address = {Manfredi, Córdoba :}
}