Ling, J., & Smith, A. (2001). English: Workbook. Federal Publications.
Chicagoスタイル(17版)引用形式Ling, Judy, , Anne Smith. English: Workbook. Singapore: Federal Publications, 2001.
MLA(8版)引用形式Ling, Judy, , Anne Smith. English: Workbook. Federal Publications, 2001.
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