Villanueva, O. (1997). Car makers project higher sales. Manila Chronicle.
Lua i Stíl Chicago (17ú heag.)Villanueva, Othel. "Car Makers Project Higher Sales." Manila Chronicle 1997.
Lua MLA (9ú heag.)Villanueva, Othel. "Car Makers Project Higher Sales." Manila Chronicle, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.