Lua APA (7ú heag.)

Varona, B. P. (2011). Emphysema: Fighting to breathe. HealthToday Philippines.

Lua i Stíl Chicago (17ú heag.)

Varona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines 2011.

Lua MLA (9ú heag.)

Varona, Bernice P. "Emphysema: Fighting to Breathe." HealthToday Philippines, 2011.

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