Author

John H. Hetrick

2 books found

Placeholder cover for Clay mineralogy of the Hawthorne Group

Clay mineralogy of the Hawthorne Group

John H. Hetrick · First published 1987

Placeholder cover for Geologic data of the Gulf Trough area, Georgia

Geologic data of the Gulf Trough area, Georgia

Stephen S. McFadden, John H. Hetrick, Madeleine F. Kellam, Paul F. Huddlestun · First published 1986