Teerman, S.C.Crelling, J.C.Glass, G.B.2024-03-142024-03-1410.15786/13697251https://wyoscholar.uwyo.edu/handle/internal/9597https://doi.org/10.15786/13697251Petrology of Hanna and Ferris formation coals from the Hanna coal field, Wyoming WSGS PubID: B-61https://creativecommons.org/licenses/by/4.0/WSGSWyomingGeologyHanna coal fieldpetrologyfigure