TY - RPRT TI - Chemical analyses of coal and coal-associated rock samples from the Rosebud and McKay coal beds, Tongue River Member of the Fort Union Formation, Colstrip coal deposit, Rosebud County, Montana AU - Ronald H. Affolter AU - Joseph R. Hatch PY - 1979 DO - 10.3133/ofr791098 UR - https://pubs.usgs.gov/publication/ofr791098 ID - ofr791098 ER -