Also known as Enciclopedia Espasa o Enciclopedia Espasa-Calpe*"Enciclopedia Labor"*"Enciclopedia Libre Universal" also known as "Enciclopedia Libre"*"", 13 volumes, 1965–70*"Gran enciclopedia planeta", 20 volumes, DVD and on-line encyclopedia, 2004*"Nueva enciclopedia Durvan"*"Nueva enciclopedia cumbre," published by Grolier in 14 volumes and available online.
Also known as Enciclopedia Espasa o Enciclopedia Espasa-Calpe* "Enciclopedia Labor"* "Enciclopedia Libre Universal" (или просто "Enciclopedia Libre")* "Enciclopedia Moderna de Mellado" (Современная энциклопедия Мелладо) (1851—1855)* "Enciclopedia Salvat"* "Gran enciclopedia planeta", 20 volume, DVD and on-line encyclopedia, 2004* "Nueva enciclopedia Durvan"* "Nueva enciclopedia cumbre," published by Grolier in 14 volumes and available online.