Heller, Robert L. (Robert Leo), 1919-
URI(s)
Variants
Additional Information
Exact Matching Concepts from Other Schemes
Closely Matching Concepts from Other Schemes
Earlier Established Forms
Sources
found: LCCN 62-10549: American Geological Institute. Conference (1959 : Duluth, Minn.). Geology and earth sciences sourcebook, 1962(hdg.: Heller, Robert Leo, 1919- ; usage: Robert L. Heller)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
1985-07-10: new
1985-07-16: revised
Alternate Formats
