姜聚省 & 刘儒德. (2005). 宝宝你在想什么: Baby What are You Thinking about. 北京出版社.
Chicago Style (17th ed.) Citation姜聚省 and 刘儒德. 宝宝你在想什么: Baby What Are You Thinking About. 北京出版社, 2005.
MLA (8th ed.) Citation姜聚省 and 刘儒德. 宝宝你在想什么: Baby What Are You Thinking About. 北京出版社, 2005.
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