AMMON, U. (2020). The position of the German language in the world. Routledge.
Chicagoスタイル(17版)引用形式AMMON, Ulrich. The Position of the German Language in the World. Routledge, 2020.
MLA(9版)引用形式AMMON, Ulrich. The Position of the German Language in the World. Routledge, 2020.
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