APA-referens (7:e uppl.)

Asis, F. K. (2001). Survival of the fittest for the elephants. Manila Bulletin.

Chicago-referens (17:e uppl.)

Asis, Fe Katherina. "Survival of the Fittest for the Elephants." Manila Bulletin 2001.

MLA-referens (9:e uppl.)

Asis, Fe Katherina. "Survival of the Fittest for the Elephants." Manila Bulletin, 2001.