Romero, J. V. J. (2002). Global aging, not overpopulation, to shape future of world economy. Manila Times.
Lua i Stíl Chicago (17ú heag.)Romero, Jose V. Jr. "Global Aging, Not Overpopulation, to Shape Future of World Economy." Manila Times 2002.
Lua MLA (9ú heag.)Romero, Jose V. Jr. "Global Aging, Not Overpopulation, to Shape Future of World Economy." Manila Times, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.