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The myriad levels of confusion for a programmer who is not trained as a cataloguer are not to be understimated in terms of time required to understand the marc MARC data and to write code to extract the correct data elements. Those who plan to use MARC data in their queries should work closely with cataloguers or colleagues with deep knowledge of who have extensive experience with MARC.
This documentation briefly describes a few of the main fields that query writers will need to use in order to count materials by format. For queries Queries that need to include details of materials, it is necessary to consult with an experienced cataloger or query writer who has in-depth knowledge of the MARC system.
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