Verharen, C. C. (1998). Environment, Culture, and Ethics. An African Concept of Evil.
Chicago Style (17. basım) AtıfVerharen, Charles C. Environment, Culture, and Ethics. An African Concept of Evil. 1998.
MLA (8th ed.) AtıfVerharen, Charles C. Environment, Culture, and Ethics. An African Concept of Evil. 1998.
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