Publication Type: | Miscellaneous |
Year of Publication: | 1921 |
Notes: | KEMP, J.F. and BILLINGSLEY, P. 1921. Sweet Grass Hills, Montana. Bulletin of the Geological Society of America, 32: 437-78 |
Publication Type: | Miscellaneous |
Year of Publication: | 1921 |
Notes: | KEMP, J.F. and BILLINGSLEY, P. 1921. Sweet Grass Hills, Montana. Bulletin of the Geological Society of America, 32: 437-78 |