Variant of CIP 2000 - Primary groupings
- 25. - Library Science
- 25.01 - Library Science/Librarianship
- 25.0101 - Library Science/Librarianship
- 25.03 - Library Assistant/Technician
- 25.0301 - Library Assistant/Technician
- 25.99 - Library Science, Other
- 25.9999 - Library Science, Other
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