(1998). U.N. predicts world population to settle at 11 billion by 2000. Manila Bulletin.
Chicago Style (17. basım) Atıf"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin 1998.
MLA (9th ed.) Atıf"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin, 1998.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..