ENCYCLOPEDIA BRITANICA. (2004). VIEWS OF AFRICA: DISCOVER THE CONTINENT THAT IS AS DIVERSE AS IT IS MAGNIFICENT. ENCYCLOPEDIA BRITANICA.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)ENCYCLOPEDIA BRITANICA. VIEWS OF AFRICA: DISCOVER THE CONTINENT THAT IS AS DIVERSE AS IT IS MAGNIFICENT. CHICAGO: ENCYCLOPEDIA BRITANICA, 2004.
MLA -ийн эшлэл (9 дэх хэвлэлт)ENCYCLOPEDIA BRITANICA. VIEWS OF AFRICA: DISCOVER THE CONTINENT THAT IS AS DIVERSE AS IT IS MAGNIFICENT. ENCYCLOPEDIA BRITANICA, 2004.
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