Lua APA (7ú heag.)

Katigbak, J. R. (2007). Memorial held for Campbell. Philippine Star.

Lua i Stíl Chicago (17ú heag.)

Katigbak, Jose Roxas. "Memorial Held for Campbell." Philippine Star 2007.

Lua MLA (9ú heag.)

Katigbak, Jose Roxas. "Memorial Held for Campbell." Philippine Star, 2007.

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