The getDates method returns the publication date of the book.

getDates方法返回图书出版日期。

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What if a book has an unknown publication date, or more than one author?

如果一本书有一个未知的出版日期，或者有多个作者，怎么办？

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Documents typically contain metadata such as the author, publisher, and publication date.

文档通常包含这样一些元数据，比如作者、出版商以及出版日期。

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He could not confirm the publication date, but implied that the paper would challenge St.

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At first blush, bibliographic data seems like it would be a fairly straightforward thing: author, title, publisher, publication date.

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Publishing veterans say it is Mr. Hosseini who could end up being disappointed, given the bigger print run for "Inferno" and its earlier publication date.

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