Discurso pronunciado por el Doctor Oscar Arias Sanchez, Presidente de la Republica de Costa Rica, en la XLI Asamblea General de las Naciones Unidas, en New York, el 24 de septiembre de 1986 By Oscar Arias Sanchez Books / Paperback History: World › South America January 1986 Price $29.29 Free Shipping Send to a friend Used - Very Good Very Good condition. Spanish edition. (Costa Rica, presidents, speeches) $29.29 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.