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.
Chicago-referens (17:e uppl.)The 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.
MLA-referens (9:e uppl.)The 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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.