Summary report of the mines branch of the department of mines : for the calendar year ending December 31, 1919.
| Typ dokumentu: | Kniha |
|---|---|
| Jazyk: |
angličtina |
| Vydavatel: |
Ottawa :
Thomas Mulvey,
1920.
|
| Edice: |
Sessional Paper ;
No. 26a-1920 |
|
|
|
|