Cita APA (7a ed.)

Paredes, D. (2007). Trains and biodiesel. IN Opinion [column]. Malaya.

Cita Chicago Style (17a ed.)

Paredes, Ducky. "Trains and Biodiesel. IN Opinion [column]." Malaya 2007.

Cita MLA (9a ed.)

Paredes, Ducky. "Trains and Biodiesel. IN Opinion [column]." Malaya, 2007.