-
By: Platts, William S., - Surface Environment & Mining Program.Edition:Publication info: [Billings, Mont., Surface Environment & Mining Program, U.S.D.A.],Volume: 1974Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
-
By: Surface Environment & Mining Program.Edition:Publication info: Billings, MT, U.S. Dept. of Agriculture, Forest Service, [1976]Volume: 1976Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: