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- Library of Congress Subject Headings
- Describing Archives: A Content Standard (DACS)
- Resource Description and Access (RDA)
- Dublin Core (DC)
- VRACore
Community Best Practices
- Sunshine State Digital Network Metadata Participation Guidelines
- DPLA Metadata Quality Guidelines
- DPLA Metadata Application Profile
- DigiNole Metadata Guidelines
- UMass Amherst Libraries Metadata Guidelines
- California Revealed Guidelines For Participation
- Northern Illinois University Data Dictionary
- Digital Culture of Metropolitan New York (DCMNY) Metadata Requirements and Guidelines
- University of Washington Libraries Data Dictionaries
- Louisiana State University Libraries Metadata Guidelines for “Free People of Color in Louisiana”
- California Digital Library Guidelines for Digital Objects
- Emory University Core Metadata
- Metadata Guidelines for Digital Resources at Texas A&M University Libraries
- Metadata Application Profile, University of Notre Dame, Hesburgh Libraries
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