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A short history of Belgium, c1920 t.p. (Léon van der Essen)
BnF Web OPAC, Oct. 23, 2009 (Van Der Essen, Léon (1883-1963); b. Dec. 12, 1883, Anvers, Belgium; d. Feb. 10, 1963, Louvain, Belgium; historien; professeur à l'Université catholique de Louvain; variants: Van Der Essen, Léon Jean (1883-1963); Der Essen, Léon Van (1883-1963); Essen, Léon Van Der (1883-1963))
LC in OCLC, 9/5/96 (hdg.: Essen, Léon van der, 1883- ; usage: Léon van der Essen)