Annual report /
| Data(s) |
31/12/1969
|
|---|---|
| Resumo |
At head of title: Calumet and Hecla Mining Company. Report year ends Apr. 30. Mode of access: Internet. |
| Formato |
bib |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
[Boston, Mass.] : Calumet and Hecla Mining Company, |
| Relação |
Summary of the operations Report |
| Direitos |
Items in this record are available as Public Domain, Google-digitized. View access and use profile at http://www.hathitrust.org/access_use#pd-google. Please see individual items for rights and use statements. |
| Palavras-Chave | #Calumet and Hecla Mining Company. #Copper mines and mining #Copper mines and mining |
| Tipo |
text |
