توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Lloyd, P. C. (1971). The political development of Yoruba kingdoms in the eighteenth and nineteenth centuries. Royal Anthropological Institute of Great Britain and Ireland.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Lloyd, Peter Cutt. The Political Development of Yoruba Kingdoms in the Eighteenth and Nineteenth Centuries. London: Royal Anthropological Institute of Great Britain and Ireland, 1971.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Lloyd, Peter Cutt. The Political Development of Yoruba Kingdoms in the Eighteenth and Nineteenth Centuries. Royal Anthropological Institute of Great Britain and Ireland, 1971.