Vol. s5-33, Issue 196, 1937April 01, 1937 EDT
Carboniferous and Permian of the Southern Urals
Carboniferous and Permian of the Southern Urals
M. K. Elias,
Elias, M. K. (1937). Carboniferous and Permian of the Southern Urals. American Journal of Science, s5-33(196), 279–295. https://doi.org/10.2475/ajs.s5-33.196.279