Emerson, R. (1967). Africa and United States policy. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Emerson, Rupert. Africa and United States Policy. Englewood Cliffs: Prentice-Hall, 1967.
Lua MLA (9ú heag.)Emerson, Rupert. Africa and United States Policy. Prentice-Hall, 1967.
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