URI(s)
Identifies LC/NAF RWO
Identifies RWO
Exact Matching Concepts from Other Schemes
Sources
- found: His Soil survey ... 1977:p. 1 (George D. Preston, Soil Conservation Service)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1978-02-24: new
- 1985-06-07: revised
Alternate Formats