APA-referens (7:e uppl.)

Sarian, Z. B. (2017). Probiotics can reduce feed costs. IN Agri Plain Talk [column]. Manila Bulletin.

Chicago-referens (17:e uppl.)

Sarian, Zacarias B. "Probiotics Can Reduce Feed Costs. IN Agri Plain Talk [column]." Manila Bulletin 2017.

MLA-referens (9:e uppl.)

Sarian, Zacarias B. "Probiotics Can Reduce Feed Costs. IN Agri Plain Talk [column]." Manila Bulletin, 2017.