@book{8336,
	author = {Penagos González, Alis Julia and Acosta López, Delfina},
	title = {Contratos Forward en el Mercado Abierto de la Bolsa Nacional Agropecuaria /},
	publisher = {Unillanos,},
	year = {2002.},
	address = {Villavicencio :}
}