Legaspi, R. (1999). Like planes, ships to have own black box. Manila Times.
Lua i Stíl Chicago (17ú heag.)Legaspi, Raymond. "Like Planes, Ships to Have Own Black Box." Manila Times 1999.
Lua MLA (9ú heag.)Legaspi, Raymond. "Like Planes, Ships to Have Own Black Box." Manila Times, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.