Kuper, A., & Kuper, J. (2000). Ensiklopedi Ilmu-Ilmu Sosial 2: Machiavelli-World System. PT RajaGrafindo.
芝加哥风格引文Kuper, Adam, 与 Jessica Kuper. Ensiklopedi Ilmu-Ilmu Sosial 2: Machiavelli-World System. PT RajaGrafindo, 2000.
MLA引文Kuper, Adam, 与 Jessica Kuper. Ensiklopedi Ilmu-Ilmu Sosial 2: Machiavelli-World System. PT RajaGrafindo, 2000.
警告：这些引文格式不一定是100％准确.