| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1 |
 |
Allaying of coal dust by water infusion of coal in place in the leading coal producing countries of the world | 1955-05 | Text | ir_etd |
| 2 |
 |
Oral history interview with Helen Grace Shelby Hunsaker by Molly Ladd and Marcia Kelleher | 2009-04-22; 2009-04-24 | Text; Sound | dha_uhsoh |