URI(s)
- http://id.loc.gov/authorities/subjects/sh85002589
- http://id.loc.gov/authorities/sh85002589#concept
Components
Variants
- Purification of air
Broader Terms
Narrower Terms
Related Terms
Closely Matching Concepts from Other Schemes
Broader Concepts from Other Schemes
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1986-02-11: new
- 1993-07-02: revised
Alternate Formats
