Vol. s5-8, Issue 45, 1924September 01, 1924 EDT
The Loyalhanna Limestone of Southwestern Pennsylvania Especially With Regard to Its Age and Correlation
The Loyalhanna Limestone of Southwestern Pennsylvania Especially With Regard to Its Age and Correlation
Charles Butts,
Butts, C. (1924). The Loyalhanna limestone of southwestern Pennsylvania especially with regard to its age and correlation. American Journal of Science, s5-8(45), 249–257. https://doi.org/10.2475/ajs.s5-8.45.249