Lua APA (7ú heag.)

Roxas, P. (2003). P20-B road project to link ecozones in Central Luzon. Manila Times.

Lua i Stíl Chicago (17ú heag.)

Roxas, Patrick. "P20-B Road Project to Link Ecozones in Central Luzon." Manila Times 2003.

Lua MLA (9ú heag.)

Roxas, Patrick. "P20-B Road Project to Link Ecozones in Central Luzon." Manila Times, 2003.

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