Romero, J. V. J. (2002). Global aging, not overpopulation, to shape future of world economy. Manila Times.
Chicago-referens (17:e uppl.)Romero, Jose V. Jr. "Global Aging, Not Overpopulation, to Shape Future of World Economy." Manila Times 2002.
MLA-referens (9:e uppl.)Romero, Jose V. Jr. "Global Aging, Not Overpopulation, to Shape Future of World Economy." Manila Times, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.