Lu, C., & Tiu, V. (1999). A Methods engineering study on Maratex Manufacturing Corporation. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Lu, Christopher, agus Venice Tiu. A Methods Engineering Study on Maratex Manufacturing Corporation. Diliman, Quezon City: College of Engineering, 1999.
Lua MLA (9ú heag.)Lu, Christopher, agus Venice Tiu. A Methods Engineering Study on Maratex Manufacturing Corporation. College of Engineering, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.