Vol. 256, Issue 7, 1958September 01, 1958 EDT
Permafrost Features Near the Wisconsin Glacial Margin in Illinois
Permafrost Features Near the Wisconsin Glacial Margin in Illinois
John Chapman Frye, Harold Bowen Willman,
Frye, J. C., & Willman, H. B. (1958). Permafrost features near the Wisconsin glacial margin in Illinois. American Journal of Science, 256(7), 518–524. https://doi.org/10.2475/ajs.256.7.518