The isotopic age of the Flathead Sandstone (Middle Cambrian), Montana
- 1 March 1969
- journal article
- Published by Society for Sedimentary Geology in Journal of Sedimentary Research
- Vol. 39 (1), 364-366
- https://doi.org/10.1306/74D71C76-2B21-11D7-8648000102C1865D