articles in the Dictionary of National Biography :
"Arthur ," in Dictionary of National Biography, 1885-1900 , London: Smith, Elder, & Co. (1885–1900) in 63 vols.
"Arthur (1187-1203) ," in Dictionary of National Biography, 1885-1900 , London: Smith, Elder, & Co. (1885–1900) in 63 vols.
"Arthur (1486-1502) ," in Dictionary of National Biography, 1885-1900 , London: Smith, Elder, & Co. (1885–1900) in 63 vols.
articles in The Encyclopedia Americana (1920):
articles in The New International Encyclopædia :
"Arthur (duke) ," in The New International Encyclopædia , New York: Dodd, Mead and Co. (1905)
"Arthur (king) ," in The New International Encyclopædia , New York: Dodd, Mead and Co. (1905)
"Arthur ," in The New Student's Reference Work , Chicago: F.E. Compton and Co. (1914)
"Arthur ," in Collier's New Encyclopedia , New York: P. F. Collier & Son Co. (1921)
Arthur (vol. 1-2, 1845), novel by Eugène Sue