by Montana State University--Bozeman. Engineering Experiment Station

1963

by Montana Bureau of Mines and Geology

1929

by Missouri Montana. State University, State University of Montana (Missoula, Mont.)

1930

by Montana School of Mines

1917

by Montana State Normal College

1925

by Montana Bureau of Mines and Geology

1919

by Montana Bureau of Mines and Geology

1928

by Western Montana College of Education

1930

by Montana

1921

by Montana Bureau of Mines and Geology

1919