Zobel de Ayala, J. A., II. (1998). The challenge of leadership in a democracy. Today.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रZobel de Ayala, Jaime Augusto, II. "The Challenge of Leadership in a Democracy." Today 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रZobel de Ayala, Jaime Augusto, II. "The Challenge of Leadership in a Democracy." Today, 1998.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.