Knechtel, Maxwell M. 1897-1984
Stratigraphy of the little rocky mountains and encircling foothills Montana / by Maxwell M. Knechtel. -- Washington : United States Government Printing Office, 1959 - P. 723-752 + map. -- (Geological Survey Bulletin ; 1072-N).
Estratigrafía
Montana
551.7(786)
Stratigraphy of the little rocky mountains and encircling foothills Montana / by Maxwell M. Knechtel. -- Washington : United States Government Printing Office, 1959 - P. 723-752 + map. -- (Geological Survey Bulletin ; 1072-N).
Estratigrafía
Montana
551.7(786)