Orbeta, J. (2000). Why slowing population growth in the Philippines is an imperative. Philippine Star.
Chicago-referens (17:e uppl.)Orbeta, Joseph. "Why Slowing Population Growth in the Philippines Is an Imperative." Philippine Star 2000.
MLA-referens (9:e uppl.)Orbeta, Joseph. "Why Slowing Population Growth in the Philippines Is an Imperative." Philippine Star, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.