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Lua i Stíl Chicago (17ú heag.)Ng, Willie. "Unstoppable Population Growth Leading Case of Poverty." Manila Bulletin 2001.
Lua MLA (9ú heag.)Ng, Willie. "Unstoppable Population Growth Leading Case of Poverty." Manila Bulletin, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.