Vol. s4-14, Issue 83, 1902November 01, 1902 EDT
The Upper Permian in Western Texas
The Upper Permian in Western Texas
George Herbert Girty,
Girty, G. H. (1902). The Upper Permian in Western Texas. American Journal of Science, s4-14(83), 363–368. https://doi.org/10.2475/ajs.s4-14.83.363