Cita APA (7a ed.)

Katigbak, A. F. (2005). UP honors former energy secretary. Philippine Star.

Cita Chicago Style (17a ed.)

Katigbak, Antonio F. "UP Honors Former Energy Secretary." Philippine Star 2005.

Cita MLA (9a ed.)

Katigbak, Antonio F. "UP Honors Former Energy Secretary." Philippine Star, 2005.