Haupt, A., & Kane, T. T. (1998). The Population Reference Bureau's population handbook (4th international ed.). Population Reference Bureau.
Dyfyniad Arddull ChicagoHaupt, Arthur, and Thomas T. Kane. The Population Reference Bureau's Population Handbook. 4th international ed. Washington, DC: Population Reference Bureau, 1998.
Dyfyniad MLAHaupt, Arthur, and Thomas T. Kane. The Population Reference Bureau's Population Handbook. 4th international ed. Population Reference Bureau, 1998.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.