11. Bolivar, Fernando S. Fernando Bolivar and University of Virginia; [by Elisabeth Randolph Shirley]. Bookmark Corporate/Agency Authors: Pan American Union Publisher: Pan American Union Date: [1930.] SuDoc number: PA 1.38:1
12. Ecuador. El centenario de la República del Ecuador; [por Homero Viteri Lafronte]. Bookmark Corporate/Agency Authors: Pan American Union Publisher: Pan American Union Date: [1930.] SuDoc number: PA 1.38:s 1