Citazione Stile APA (7a Edizione)

Gonzales, S. R. O. (1999). Earth's population to hit 6B next month. Philippine Daily Inquirer.

Citazione stile Chigago Style (17a edizione)

Gonzales, Stella Ruth O. "Earth's Population to Hit 6B Next Month." Philippine Daily Inquirer 1999.

Citatione MLA (9a ed.)

Gonzales, Stella Ruth O. "Earth's Population to Hit 6B Next Month." Philippine Daily Inquirer, 1999.