LEFEVER, E. W. (1965). Crisis in the Congo: A United Nations force in action. Brookings institutions.
Lua i Stíl Chicago (17ú heag.)LEFEVER, Ernest W. Crisis in the Congo: A United Nations Force in Action. Wasington: Brookings institutions, 1965.
Lua MLA (9ú heag.)LEFEVER, Ernest W. Crisis in the Congo: A United Nations Force in Action. Brookings institutions, 1965.
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