郭扬华. (2021). 美利坚笔记: United States notes. 团结出版社.
Chicago Style (17th ed.) Citation郭扬华. 美利坚笔记: United States Notes. 团结出版社, 2021.
Cita MLA郭扬华. 美利坚笔记: United States Notes. 团结出版社, 2021.
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Cita APA