| Author | : Kentucky Geological Survey |
| Publisher | : |
| Total Pages | : 220 |
| Release | : 1927 |
| Genre | : Geology |
| ISBN | : |
Administrative Report for the (sixth) Kentucky Geological Survey, Years 1926 and 1927
| Author | : Willard Rouse Jillson |
| Publisher | : |
| Total Pages | : 102 |
| Release | : 1927 |
| Genre | : Geology |
| ISBN | : |
Administrative Report for the (sixth) Kentucky Geological Survey
| Author | : Kentucky Geological Survey |
| Publisher | : |
| Total Pages | : 18 |
| Release | : 1926 |
| Genre | : Geology |
| ISBN | : |
An Administrative Report for the (sixth) Kentucky Geological Survey, Years 1930 and 1931
| Author | : Kentucky Geological Survey (1920-1932) |
| Publisher | : |
| Total Pages | : 168 |
| Release | : 1931 |
| Genre | : |
| ISBN | : |
Administrative Report for the (sixth) Kentucky Geological Survey (years 1928 and 1929)
| Author | : Willard Rouse Jillson |
| Publisher | : |
| Total Pages | : 122 |
| Release | : 1929 |
| Genre | : Geology |
| ISBN | : |
The Sixth Geological Survey
| Author | : Willard Rouse Jillson |
| Publisher | : |
| Total Pages | : 328 |
| Release | : 1921 |
| Genre | : Coal mines and mining |
| ISBN | : |
The Sixth Geological Survey
| Author | : Kentucky Geological Survey |
| Publisher | : |
| Total Pages | : 322 |
| Release | : 1921 |
| Genre | : Geology |
| ISBN | : |
