Ajayi, A. O., & Thorbercke, G. (2014). The Geochemistry of the Alluvial Topaz associated with the Jurassic kwandonkaya Granites in North-East Jos, Nigeria. Obafemi Awolowo University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ajayi, Abiola Olanrewaju, و G. Thorbercke. The Geochemistry of the Alluvial Topaz Associated with the Jurassic Kwandonkaya Granites in North-East Jos, Nigeria. Obafemi Awolowo University, 2014.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ajayi, Abiola Olanrewaju, و G. Thorbercke. The Geochemistry of the Alluvial Topaz Associated with the Jurassic Kwandonkaya Granites in North-East Jos, Nigeria. Obafemi Awolowo University, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.