Não informado. Population Reports. George Washington University, Department of Medical and Public Affairs.
Chicago Style (17. basım) AtıfNão informado. Population Reports. Washington: George Washington University, Department of Medical and Public Affairs.
MLA (8th ed.) AtıfNão informado. Population Reports. George Washington University, Department of Medical and Public Affairs.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..