Search for: [Title = "Bulletin 856. Geology of Big Horn County and the Crow Indian Reservation, Montana \: with special reference to the water, coal, oil, and gas resources"]
Thom, William Taylor (1891-1979)Hall, G. M.Wegemann, Carroll Harvey (1879-?)Moulton, Gail Francis (1898-1974)United States of America. Geological Survey.