MARC 21 format for authority data : including guidelines for content designation / prepared by Network Development and MARC Standards Office, Library of Congress, in cooperation with Standards and Support, National Library of Canada.

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Due to essential maintenance, we won’t be able to retrieve items from our closed stores over the weekend. Please submit requests for Monday 20 April by 10:00 on Friday 17 April. The library will remain open as usual. Thank you for your understanding.

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MARC 21 format for authority data : including guidelines for content designation / prepared by Network Development and MARC Standards Office, Library of Congress, in cooperation with Standards and Support, National Library of Canada.