ALEXANDER, L. (1997). First things first: Suplementary written exercises. Kanisius.
芝加哥风格引文ALEXANDER, L.G. First Things First: Suplementary Written Exercises. Yogyakarta: Kanisius, 1997.
MLA引文ALEXANDER, L.G. First Things First: Suplementary Written Exercises. Kanisius, 1997.
警告：这些引文格式不一定是100％准确.