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..
Citace podle Chicago (17th ed.)American University (Washington, D.C.). Foreign Area Studies, a 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.
Citace podle MLA (8th ed.)American University (Washington, D.C.). Foreign Area Studies, a Harold D. Nelson. Area Handbook for Nigeria. Rev. 3rd ed. For sale by the Supt. of Docs., U.S. G.P.O., 1972.
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