(2020). Outcomes. Intermediate (2-nd ed.). Andover, National geographic learning, 2020.
Chicagoスタイル(17版)引用形式Outcomes. Intermediate. 2-nd ed. Andover, National geographic learning, 2020, 2020.
MLA(9版)引用形式Outcomes. Intermediate. 2-nd ed. Andover, National geographic learning, 2020, 2020.
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