Stummer, P. Putting western response to the test: the case of Kwane Nkrumah of Ghana: Peter Stummer. Tensions between north and south : studies in modern commonwealth literature and culture : proceedings of the 8. Commonwealth Literature Conference.(1990).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Stummer, Peter. "Putting Western Response to the Test: The Case of Kwane Nkrumah of Ghana: Peter Stummer." Tensions Between North and South : Studies in Modern Commonwealth Literature and Culture : Proceedings of the 8. Commonwealth Literature Conference.(1990) .
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Stummer, Peter. "Putting Western Response to the Test: The Case of Kwane Nkrumah of Ghana: Peter Stummer." Tensions Between North and South : Studies in Modern Commonwealth Literature and Culture : Proceedings of the 8. Commonwealth Literature Conference.(1990), .