Arthur
- articles in the Dictionary of National Biography:
- "Arthur", an article by Charles Francis Keary in Dictionary of National Biography, 1885-1900
- "Arthur (1187-1203)", an article by Sidney Lee in Dictionary of National Biography, 1885-1900
- "Arthur (1486-1502)", an article by James Gairdner in Dictionary of National Biography, 1885-1900
- articles in The Encyclopedia Americana (1920):
- "Arthur (duke)", an article in The Encyclopedia Americana
- "Arthur (king)", an article in The Encyclopedia Americana
- articles in The New International Encyclopædia:
- "Arthur (duke)", an article in The New International Encyclopædia
- "Arthur (king)", an article in The New International Encyclopædia
- "Arthur", an article in The New Student's Reference Work
- "Arthur", an article in Collier's New Encyclopedia
- Arthur (vol. 1-2, 1845), novel by Eugène Sue