Author Details for "Willard, D.A."
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Origin of the Pennsylvanian coal-bearing cyclothems of North America | Klein, G.D.; and Willard, D.A. | Geology vol. 17, no. 2, pp. 152-155 | 1989 | N/A |
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Origin of the Pennsylvanian coal-bearing cyclothems of North America | Klein, G.D.; and Willard, D.A. | Geology vol. 17, no. 2, pp. 152-155 | 1989 | N/A |