Matias, B. . O. (2000). Bringing the heavens closer to the Filipinos. Philippine Panorama.
Chicago Style aipamenaMatias, Ben Oliver. "Bringing the Heavens Closer to the Filipinos." Philippine Panorama 2000.
MLA aipamenaMatias, Ben Oliver. "Bringing the Heavens Closer to the Filipinos." Philippine Panorama, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.