Humes, S. (1991). Local governance and national power: A worldwide comparison of tradition and change in local government. Harvester Wheatsheaf in association with the International Union of Local Authorities(IULA),the Hague,the Netherlands.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Humes, Samuel. Local Governance and National Power: A Worldwide Comparison of Tradition and Change in Local Government. New York: Harvester Wheatsheaf in association with the International Union of Local Authorities(IULA),the Hague,the Netherlands, 1991.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Humes, Samuel. Local Governance and National Power: A Worldwide Comparison of Tradition and Change in Local Government. Harvester Wheatsheaf in association with the International Union of Local Authorities(IULA),the Hague,the Netherlands, 1991.