Vol. s3-20, Issue 117, 1880September 01, 1880 EDT
The Permian and Other Paleozoic Groups of the Kanab Valley, Arizona
The Permian and Other Paleozoic Groups of the Kanab Valley, Arizona
Charles Doolittle Walcott,
Walcott, C. D. (1880). The Permian and other Paleozoic groups of the Kanab Valley, Arizona. American Journal of Science, s3-20(117), 221–225. https://doi.org/10.2475/ajs.s3-20.117.221