APA (7 वां संस्करण) प्रशस्ति पत्र

De Leon, I. C. (1997). Charter change can wait until after '98 - FVR. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

De Leon, Isabel C. "Charter Change Can Wait Until After '98 - FVR." Manila Bulletin 1997.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

De Leon, Isabel C. "Charter Change Can Wait Until After '98 - FVR." Manila Bulletin, 1997.