American mine accounting methods and forms employed by leading mining companies
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
McGraw-Hill
c1912.
|
| Cyfres: | Mining library, v. 7
|
| Pynciau: |
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
McGraw-Hill
c1912.
|
| Cyfres: | Mining library, v. 7
|
| Pynciau: |