APA-referens (7:e uppl.)

(1997). The Philippine College of Chest Physicians at 25: A retrospect. Manila Chronicle.

Chicago-referens (17:e uppl.)

"The Philippine College of Chest Physicians at 25: A Retrospect." Manila Chronicle 1997.

MLA-referens (9:e uppl.)

"The Philippine College of Chest Physicians at 25: A Retrospect." Manila Chronicle, 1997.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.