LIU, G. (2005). The Singapore foreign service: The first 40 years. Editions Didier Millet.
芝加哥风格引文LIU, Gretchen. The Singapore Foreign Service: The First 40 Years. Editions Didier Millet, 2005.
MLA引文LIU, Gretchen. The Singapore Foreign Service: The First 40 Years. Editions Didier Millet, 2005.
警告：这些引文格式不一定是100％准确.