Cita APA (7th ed.)

Ocampo, A. R. (1999). Angano petroglyphs. IN Looking back [column]. Philippine Daily Inquirer.

Cita Chicago (17th ed.)

Ocampo, Ambeth R. "Angano Petroglyphs. IN Looking Back [column]." Philippine Daily Inquirer 1999.

Cita MLA (9th ed.)

Ocampo, Ambeth R. "Angano Petroglyphs. IN Looking Back [column]." Philippine Daily Inquirer, 1999.