@book{8521,
	author = {Bolsa de Cereales de Buenos Aires and Gogna, José M.},
	title = {Bolsa de Cereales},
	publisher = {Bolsa de Cereales},
	year = {1982},
	address = {Buenos Aires :},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/revistas/N?mero Estad?stico.jpg}
}