Negociacion Peña. Coleccion de todos los documentos de su referencia
Negotiations and correspondence between Valentín Alsina, Juan Bautista Peña, Santiago Derqui, José Maria Cullen and others, published by Juan Bautista Peña, the provincial government's ambassador to president Justo José de Urquiza, who sealed the peace between the two governments. Includes details of treaty stipulations of 8 January, external relations, national reorganisation, and special precautions regarding the armed forces. Correspondence is dated between October 1855 and February 1856