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Locate the course reading list in Alma
From the reading list, click Add Citation > Add Repository Citation
Once the citation exists, follow the directions above.
See https://knowledge.exlibrisgroup.com/Alma/Product_Documentation/010Alma_Online_Help_(English)/030Fulfillment/060Courses_and_Reading_Lists/040Managing_Citations#Adding_a_Citation_Already_in_the_Repository for more details from Ex Libris.
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