Machado, K. G. (1972). Changing patterns of leadership recruitment and the emergence of the professional politician in Philippine local politics. Philippine Journal of Public Administration.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Machado, Kit G. "Changing Patterns of Leadership Recruitment and the Emergence of the Professional Politician in Philippine Local Politics." Philippine Journal of Public Administration 1972.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Machado, Kit G. "Changing Patterns of Leadership Recruitment and the Emergence of the Professional Politician in Philippine Local Politics." Philippine Journal of Public Administration, 1972.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.