Voice of America (Radio program). (1964). The population of the world. [s.n.].
Cita Chicago Style (17a ed.)Voice of America (Radio program). The Population of the World. [Washington: [s.n.], 1964.
Cita MLA (9a ed.)Voice of America (Radio program). The Population of the World. [s.n.], 1964.
Precaución: Estas citas no son 100% exactas.