派尔. (2010). 魔钟: Wonder clock. 哈尔滨出版社.
Chicago Style (17th ed.) Citation派尔. 魔钟: Wonder Clock. 哈尔滨出版社, 2010.
MLA (8th ed.) Citation派尔. 魔钟: Wonder Clock. 哈尔滨出版社, 2010.
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APA (7th ed.) Citation