Session papers.
| Corporate Author: | |
|---|---|
| Format: | Serial |
| Language: | English |
| Published: |
Washington, D.C. :
American Mining Congress,
[19-]
|
| Subjects: |
| Item Description: | Issues for 19 - presented at the Congress' International Coal Show. |
|---|---|
| Physical Description: | volumes : illustrations ; 28 cm. |
| Publication Frequency: | Annual. |