- “Nigeria,” in Encyclopædia Britannica, (11th ed.), 1911
- “Upper and Lower Nigeria,” in Catholic Encyclopedia, 1913.
- “Nigeria, Northern and Southern,” in The New Student's Reference Work, Chicago: F.E. Compton and Co. (1914)
- “Nigeria” in The World Factbook by the CIA, 1982.
- “Nigeria” in The World Factbook by the CIA, 2004.
- Constitution of Nigeria
- Constitution of the Federation of Nigeria
- Nigerian Copyright Law (1999)
- Tribalism in Nigeria, by I. O. Akunneto
- Nigeria and its Tin Fields, 1910 by Albert Frederick Calvert
- Nigerian Studies: The Religious and Political System of the Yoruba, 1910 by Richard Edward Dennett
- The Ibibios of Southern Nigeria, 1915 by D. Amaury Talbot
- A Short History Of Nigeria, 1962 by Michael Crowder
- Nigeria We Hail Thee
- Arise O Compatriots, Nigeria's Call Obey
- United Nations Security Council Resolution 160