The Philippines Within a Century Conference. (1989). Final report of the Philippines Within a Century held at the SGV Development Center 16 September 1989. Philippine Futuristics Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Philippines Within a Century Conference. Final Report of the Philippines Within a Century Held at the SGV Development Center 16 September 1989. Makati, Metro Manila: Philippine Futuristics Society, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Philippines Within a Century Conference. Final Report of the Philippines Within a Century Held at the SGV Development Center 16 September 1989. Philippine Futuristics Society, 1989.
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