- “Portugal” in The Nuttall Encyclopædia by James Wood, London: Frederick Warne and Co., Ltd., 1907.
- “Beira (Portugal),” in Encyclopædia Britannica, (11th ed.), 1911
- “Portugal,” in Catholic Encyclopedia, 1913.
- “Portugal” in The World Factbook by the CIA, 1982.
- “Portugal” in The World Factbook by the CIA, 2004.
- A Tentative List of Books and Some Manuscripts Relating to the History of the Portuguese in India Proper, 1880 by Arthur Coke Burnell (transcription project)
- The Jews of Spain and Portugal and the Inquisition, 1877 by Frederic David Mocatta (External scan)
- A Philosopher in Portugal, 1903 by Author:Eugène E. Street (External scan)
- “Commemorating Dia de Portugal” (1996)
- “There was a Young Lady of Portugal”
- "Megalithic Monuments in Spain and Portugal", in Popular Science Monthly Volume 31, May 1887
- "Lost Colonies of Northmen and Portuguese", in Popular Science Monthly Volume 27, May 1885
- “Address on the King's Message Respecting Portugal” (1826)
- The Portuguese Expedition to Abyssinia in 1541–1543
- The Fanny (22 U.S. 658)
- The Antelope
- Portuguese Folk-Tales
- Constitution of the Republic of Portugal, 1976