Lua APA (7ú heag.)

Perez, D. (1999). Steel firm was bound to fail. Manila Bulletin.

Lua i Stíl Chicago (17ú heag.)

Perez, Delfin. "Steel Firm Was Bound to Fail." Manila Bulletin 1999.

Lua MLA (9ú heag.)

Perez, Delfin. "Steel Firm Was Bound to Fail." Manila Bulletin, 1999.

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