| 1969 | ||
| Wednesday, April 16th | ||
|---|---|---|
| 12:00 AM |
Merl Baker, Missouri University of Science and Technology 12:00 AM |
|
| Friday, April 18th | ||
| 12:00 AM |
J. Allen Overton Jr. 12:00 AM |
|
| 12:00 AM |
Summary and Conclusions of the Mining Environmental Conference Thomas Ware 12:00 AM |
|
