(1998). U.N. predicts world population to settle at 11 billion by 2000. Manila Bulletin.
Cita Chicago Style (17a ed.)"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin 1998.
Cita MLA (9a ed.)"U.N. Predicts World Population to Settle at 11 Billion by 2000." Manila Bulletin, 1998.
Precaución: Estas citas no son 100% exactas.