APA-viite (7. p.)

Villegas, B. M. (1997). The ethics of investigative journalism. Manila Bulletin.

Chicago-viite (17. p.)

Villegas, Bernardo M. "The Ethics of Investigative Journalism." Manila Bulletin 1997.

MLA-viite (9. p.)

Villegas, Bernardo M. "The Ethics of Investigative Journalism." Manila Bulletin, 1997.