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How does MARC 21 differ from the USMARC and CAN/MARC formats?

April 26, 2017differ formats MARC usmarc

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How does MARC 21 differ from the USMARC and CAN/MARC formats?

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MARC 21 is not a new format. After having discussions and making minor changes to both formats that accommodated USMARC and CAN/MARC users’ specific needs, the USMARC and CAN/MARC (Canadian MARC) formats were “harmonized” into MARC 21 in 1997. See http://www.loc.gov/marc/annmarc21.html for more information about the harmonization.