Sarian, Z. B. (2001). Corn hybrids can produce 8 to 10 tons per hectare. IN Agri plain talk [column]. Manila Bulletin.
Chicago-referens (17:e uppl.)Sarian, Zacarias B. "Corn Hybrids Can Produce 8 to 10 Tons Per Hectare. IN Agri Plain Talk [column]." Manila Bulletin 2001.
MLA-referens (9:e uppl.)Sarian, Zacarias B. "Corn Hybrids Can Produce 8 to 10 Tons Per Hectare. IN Agri Plain Talk [column]." Manila Bulletin, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.