Orbeta, J. (2000). Why slowing population growth in the Philippines is an imperative. Philippine Star.
Citazione stile Chigago Style (17a edizione)Orbeta, Joseph. "Why Slowing Population Growth in the Philippines Is an Imperative." Philippine Star 2000.
Citatione MLA (9a ed.)Orbeta, Joseph. "Why Slowing Population Growth in the Philippines Is an Imperative." Philippine Star, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.