APA (7 वां संस्करण) प्रशस्ति पत्र

(1990). Housing in the Philippines. IN Construction Notes [column]. Manila Bulletin.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

"Housing in the Philippines. IN Construction Notes [column]." Manila Bulletin 1990.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

"Housing in the Philippines. IN Construction Notes [column]." Manila Bulletin, 1990.