The present invention relates to a method for detecting an error in bibliographic data of books, a device thereof, and a system thereof, the method comprising the following steps of: loading a book item from a library DB; extracting an identifier assigned to the book item; and sending a search request including the extracted identifier through a broadband network; and comparing a searched item with the book item based on division of bibliographic data wherein the searched item and the book item are received through the broadband network.;COPYRIGHT KIPO 2016
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