Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.