Não informado. (1973). Population Reports. George Washington University, Department of Medical and Public Affairs.
Cita Chicago Style (17a ed.)Não informado. Population Reports. Washington: George Washington University, Department of Medical and Public Affairs, 1973.
Cita MLA (8a ed.)Não informado. Population Reports. George Washington University, Department of Medical and Public Affairs, 1973.
Precaución: Estas citas no son 100% exactas.