The Library of Congress > Linked Data Service
  Label Vocabulary Concept Subdivision Identifier
1. computer tape reel Carriers
Authority ch
2. film roll Carriers
Authority mo
3. stereograph disc Carriers
Authority es
4. aperture card Carriers
Authority ha
5. microfilm cassette Carriers
Authority hc
6. other microform carrier Carriers
Authority hz
7. audio disc Carriers
Authority sd
8. unspecified Content Types
Authority zzz
9. cartographic tactile three-dimensional form Content Types
Authority crn
10. microfiche Carriers
Authority he
11. still image Content Types
Authority sti
12. audio Media Types
Authority s
sound recording
13. tactile three-dimensional form Content Types
Authority tcf
14. card Carriers
Authority no
15. microopaque Carriers
Authority hg
16. other microscopic carrier Carriers
Authority pz
17. online resource Carriers
Authority cr
18. cartographic tactile image Content Types
Authority crt
19. performed music Content Types
Authority prm
20. stereograph card Carriers
Authority eh


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