Proceedings of the 1st Mine Ventilation Symposium, March 29-31, 1982, the University of Alabama University (Tuscaloosa), Alabama
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
Society of Mining Engineers
1982.
|
| Pynciau: |