Song Haiyan. (2009). Beijing welcomes you: 4a. Foreign Language Teaching and Research Press.
Tohutoru Kātū Chicago (17th ed.)Song Haiyan. Beijing Welcomes You: 4a. : Foreign Language Teaching and Research Press, 2009.
Tohutoro MLA (9th ed.)Song Haiyan. Beijing Welcomes You: 4a. Foreign Language Teaching and Research Press, 2009.
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