01063nam a2200229Ia 4500 146423 BIBL 20160527194855.0 800425s1946 sp b b f00110 spa Ramos Pérez, Demetrio Local 156807 El Tratado de límites de 1750 y la expedición de Iturriaga al Orinoco Demetrio Ramos Pérez ; prólogo del Dr. Amando Melón y Ruiz de Gordejuela. Madrid Consejo Superior de Investigaciones Científicas, Instituto Juan Sebastián Elcano 1946. iv, [7]-537 p. maps. Originally presented as the author's thesis, Madrid, 1944. Includes indexes. Bibliographical footnotes. Iturriaga, José de. Local 116394 Madrid, Treaty of, 1750. Orinoco River Venezuela and Colombia Discovery and exploration. Local 145602 Orinoco River Valley Venezuela and Colombia Discovery and exploration. Local 145600 Instituto Juan Sebastián Elcano. Local 238039 121874 121874 0 0 0 987_000000000000000_R175 0 evl 253048 10 10 1 2016-05-27 20997 0 987 R175 80000001437725 2016-05-27 00:00:00 r:146423 z:NCC:D 6 0 0 0 918_700000000000000_R175T 0 ci 253052 10 10 8 2016-05-27 219993 0 918.7 R175t 80000001692097 2016-05-27 00:00:00 r:146423 z:NCC:D 6