AMMON, U. (2020). The position of the German language in the world. Routledge.
芝加哥风格引文AMMON, Ulrich. The Position of the German Language in the World. Routledge, 2020.
MLA引文AMMON, Ulrich. The Position of the German Language in the World. Routledge, 2020.
警告：这些引文格式不一定是100％准确.