Lua APA (7ú heag.)

Calumpita, R. E. (2005). Hospitals lack waste treatment. Manila Times.

Lua i Stíl Chicago (17ú heag.)

Calumpita, Ronnie E. "Hospitals Lack Waste Treatment." Manila Times 2005.

Lua MLA (9ú heag.)

Calumpita, Ronnie E. "Hospitals Lack Waste Treatment." Manila Times, 2005.

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