Pennsylvania. Topographic and Geological Survey Commission
URI(s)
Variants
- Pennsylvania. Topographic and Geologic Survey Commission
Additional Information
Related Terms
Exact Matching Concepts from Other Schemes
Closely Matching Concepts from Other Schemes
Sources
- found: Its Topographic & geologic survey, 1906.
- found: Pennsylvania, Pittsburgh quadrangle, 1907:map recto (State of Pennsylvania, Topographic and Geologic Survey Commission)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1979-07-24: new
- 2010-10-30: revised
Alternate Formats