Tohutoro APA (7th ed.)

Ocampo, A. R. (1999). Life has changed in a century. IN Looking back [column]. Philippine Daily Inquirer.

Tohutoru Kātū Chicago (17th ed.)

Ocampo, Ambeth R. "Life Has Changed in a Century. IN Looking Back [column]." Philippine Daily Inquirer 1999.

Tohutoro MLA (9th ed.)

Ocampo, Ambeth R. "Life Has Changed in a Century. IN Looking Back [column]." Philippine Daily Inquirer, 1999.