Harper, B. L. (2001). Livestock, natural resources and industry. IN Sense and sensibility [column]. Philippine Daily Inquirer.
Chicago-referens (17:e uppl.)Harper, Bambi Lammoglia. "Livestock, Natural Resources and Industry. IN Sense and Sensibility [column]." Philippine Daily Inquirer 2001.
MLA-referens (9:e uppl.)Harper, Bambi Lammoglia. "Livestock, Natural Resources and Industry. IN Sense and Sensibility [column]." Philippine Daily Inquirer, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.