Stratigraphic sections of upper Paleozoic and Mesozoic rocks in south-central Montana,
by L. S. Gardner, T. A. Hendricks, H. D. Hadley, and C. P. Rogers, jr., with description of fauna of Amsden and Heath formations, by L. L. Sloss.
- Butte, Mont., Montana School of mines, 1946.
- vi, 100 p. map. 28 cm.
- Montana. State bureau of mines and geology. Memoir no. 24 .
"Prepared as part of the Oil and gas investigations by the Geological survey, U.S. Dept. of the interior, with the cooperation of the Montana Bureau of mines and geology."