Umezurike, S. C. (2015). An Assessment of the Role of Governmental and Non-Governmental Organisations in the Provision of Water Supply in Umunneochi and Isuikwuato Local Government Areas of Abia State, Nigeria.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Umezurike, Samuel Chukwuemeka. An Assessment of the Role of Governmental and Non-Governmental Organisations in the Provision of Water Supply in Umunneochi and Isuikwuato Local Government Areas of Abia State, Nigeria. 2015.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Umezurike, Samuel Chukwuemeka. An Assessment of the Role of Governmental and Non-Governmental Organisations in the Provision of Water Supply in Umunneochi and Isuikwuato Local Government Areas of Abia State, Nigeria. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.