- Belgium and payments to Russia, 1832
- Belgium, as it appeared in the 1911 Encyclopædia Britannica
- How Belgium saved Europe, 1915 by Author:Charles Sarolea
- Belgium's Agony, 1915 by Author:Emile Verhaeren
- Belgium's Plight as it appeared in the 1917 National Geographic Magazine.
- Belgium, 1919 poem
- A Journal From Our Legation in Belgium by Author:Hugh Gibson
- Belgium from the Roman invasion to the present day , 1921 by Author:Emile Cammaerts
- Constitution of Belgium, 1996
- Belgium, poem by Florence Earle Coates
- “Belgium” in The Nuttall Encyclopædia by James Wood, London: Frederick Warne and Co., Ltd., 1907.
- “Belgium,” in Encyclopædia Britannica, (11th ed.), 1911
- “Belgium,” in Catholic Encyclopedia, New York: The Encyclopaedia Press (1913)
- “Belgium” in The World Factbook by the CIA, 1982.
- “Belgium” in The World Factbook by the CIA, 1990.
- “Belgium” in The World Factbook by the CIA, 2004.