APA-referens (7:e uppl.)

American University (Washington, D.C.). Foreign Area Studies, & Nelson, H. D. (1972). Area handbook for Nigeria (Rev. 3rd ed.). For sale by the Supt. of Docs., U.S. G.P.O..

Chicago-referens (17:e uppl.)

American University (Washington, D.C.). Foreign Area Studies, och Harold D. Nelson. Area Handbook for Nigeria. Rev. 3rd ed. Washington, D.C.: For sale by the Supt. of Docs., U.S. G.P.O., 1972.

MLA-referens (8:e uppl.)

American University (Washington, D.C.). Foreign Area Studies, och Harold D. Nelson. Area Handbook for Nigeria. Rev. 3rd ed. For sale by the Supt. of Docs., U.S. G.P.O., 1972.