Lua APA (7ú heag.)

Estupigan, R. V. (1999). Ford in the Philippines. Manila Bulletin.

Lua i Stíl Chicago (17ú heag.)

Estupigan, Ruth V. "Ford in the Philippines." Manila Bulletin 1999.

Lua MLA (9ú heag.)

Estupigan, Ruth V. "Ford in the Philippines." Manila Bulletin, 1999.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.