(1998). U.N. predicts world population to settle at 11 billion by 2000. Manila Bulletin.
Chicagoスタイル(17版)引用形式"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin 1998.
MLA(9版)引用形式"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin, 1998.
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