Vol. s4-45, Issue 269, 1918May 01, 1918 EDT
On the Carboniferous of the Grand Canyon of Arizona
On the Carboniferous of the Grand Canyon of Arizona
Charles Schuchert,
Schuchert, C. (1918). On the Carboniferous of the Grand Canyon of Arizona. American Journal of Science, s4-45(269), 347–361. https://doi.org/10.2475/ajs.s4-45.269.347