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Top > Frequently asked questions > Bibliographic data > Content and rules of bibliographic data

Frequently asked questions : Content and rules of bibliographic data

Frequently asked questions

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Q
I have discovered an error in bibliographic data. Can I ask to have it amended?
A
If you find an error in bibliographic data, please let us know the specific content such as bibliographic ID and title using the contact form.
If you find any errors related to authority data (such as author name), please let us know using the Inquiries page.

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Q
I have a question about some contents of bibliographic data.
A
For materials acquired on the basis of the legal deposit system, as soon as these materials arrive the National Diet Library creates a bibliographic entry. The Library also creates standard data based on the Nippon (Japanese) Cataloging Rules.
Please contact us via the inquiry form.

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Q
Incomplete bibliographic data is searchable. Why does the Library make this data publically available even though the actual materials cannot yet be used?
A
As the Library receives a lot of inquiries about National Diet Library bibliographic data not being found for materials already published and released for sale, in order to rapidly respond to user demands the Library provides the relevant bibliographic data even if it is still being prepared.

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Q
Can I use materials that display the message "This bibliography is incomplete"?
A
You cannot use materials with the collection location "Tokyo."
You may be able to use materials with the collection location "Kansai." Please refer to Holdings using NDL-OPAC to check whether the materials are available. The length of time it takes for materials displaying "In-process record" to become available for use will differ depending on the materials.

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Q
What sort of regulations or manuals are used in creating bibliographic data?
A
It depends on the kind of materials like Japanese and Western books and serial periodicals. For more information, please refer to "List of Applied Rules".

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Q
What is the "JAPAN/MARC"?
A
The JAPAN/MARC is a machine-readable version of the Japanese National Bibliography. For details, please refer to "How to Get Bibliographic Records".

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