Opals
URI(s)
- http://id.loc.gov/authorities/subjects/sh85094861
- http://id.loc.gov/authorities/sh85094861#concept
Broader Terms
Closely Matching Concepts from Other Schemes
Narrower Concepts from Other Schemes
LC Classification
- QE394.O7
- TN997.O7
- TS755.O73
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1986-02-11: new
- 1997-03-04: revised
Alternate Formats