P-ISSN 0002-9599
E-ISSN 1945-452X
Vol. s5-21, Issue 122, 1931February 01, 1931 EDT
The Relative Ages of the Iowan and Wisconsin Drift Sheets
The Relative Ages of the Iowan and Wisconsin Drift Sheets
George Frederick Kay,
Kay, G. F. (1931). The relative ages of the Iowan and Wisconsin drift sheets. American Journal of Science, s5-21(122), 158–172. https://doi.org/10.2475/ajs.s5-21.122.158