Cita APA (7a ed.)
Population Reference Bureau. (1984). Population today. Population Reference Bureau.
Cita Chicago Style (17a ed.)
Population Reference Bureau. Population Today. Washington, D.C.: Population Reference Bureau, 1984.
Cita MLA (9a ed.)
Population Reference Bureau. Population Today. Population Reference Bureau, 1984.
Precaución: Estas citas no son 100% exactas.