Haupt, A., & Kane, T. T. (1998). The Population Reference Bureau's population handbook (4th international ed.). Population Reference Bureau.
Lua i Stíl Chicago (17ú heag.)Haupt, Arthur, agus Thomas T. Kane. The Population Reference Bureau's Population Handbook. 4th international ed. Washington, DC: Population Reference Bureau, 1998.
Lua MLA (8ú heag.)Haupt, Arthur, agus Thomas T. Kane. The Population Reference Bureau's Population Handbook. 4th international ed. Population Reference Bureau, 1998.
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