31. Directory of mining enterprises for 1965 Author/Creator: Geach, Robert D. Publication/Creation: Butte, Mont. : Montana College of Mineral Science and Technology, 1966 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.44-50 A-B ; Limestone, dolomite, and travertine in Montana / Access & Availability: Loading
32. Directory of mining enterprises for 1966 Author/Creator: Geach, Robert D. Publication/Creation: Butte : Montana College of Mineral Science and Technology, 1967 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.51-60 ; The recovery of elemental sulfur from sulfide ores. Access & Availability: Loading
33. Directory of mining enterprises for 1967 Author/Creator: Geach, Robert D. Publication/Creation: Butte : Montana College of Mineral Science and Technology, 1968 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.63-70 ; Mining methods and equipment illustrated / Access & Availability: Loading
34. Directory of mining enterprises for 1968 : with a list of active coal mines, 1968, and a section on the mineral industry of Montana in 1968 Author/Creator: Bondurant, Kenneth T. Publication/Creation: Butte : Montana College of Mineral Science and Technology, 1969 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.71-79 ; Water levels and artesian pressures in observation wells in Montana through 1968 / Access & Availability: Loading
35. Directory of mining enterprises for 1969 : with a list of active coal mines, 1969 Author/Creator: Hansen, Miller Publication/Creation: Butte : Montana College of Mineral Science and Technology, 1970 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.71-79 ; Water levels and artesian pressures in observation wells in Montana through 1968 / Access & Availability: Loading
36. Directory of mining enterprises for 1970 : with a list of coal mines, 1970 Author/Creator: Hansen, Miller Publication/Creation: Butte : Montana College of Mineral Science and Technology, 1971 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.80-85 ; Progress report on clays and shales of Montana, 1968-1969 :(samples 636-727) / Access & Availability: Loading
37. Directory of mining enterprises for 1971 : with a list of coal mines, 1971 Author/Creator: Lawson, D. C. Publication/Creation: Butte, Mont. : Montana College of Mineral Science and Technology, 1972 Resource Type: Book Access & Availability: Loading
38. Directory of mining enterprises for 1972 : with a list of coal mines, 1972 Author/Creator: Lawson, D. C. Publication/Creation: Butte, Mont. : Montana College of Mineral Science and Technology, 1973 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.86-90 ; Directory of mining enterprises for 1971 :with a list of coal mines, 1971 / Access & Availability: Loading
39. Directory of mining enterprises for 1973 : with a list of coal mines, 1973, and a section on the mineral industry of Montana in 1973 Author/Creator: Lawson, D. C. Publication/Creation: Butte, Mont. : Montana College of Mineral Science and Technology, 1974 Resource Type: Book Access & Availability: Loading
40. Directory of mining enterprises for 1974 : with a list of coal mines, 1974, and a section on the mineral industry of Montana in 1974 Author/Creator: Lawson, D. C. Publication/Creation: Butte, Mont. : Montana College of Mineral Science and Technology, 1975 Resource Type: Book Is Part Of: Bound with: QE133 .A3 NO.92-97 ; Directory of mining enterprises for 1973 :with a list of coal mines, 1973, and a section on the mineral industry of Montana in 1973 / Access & Availability: Loading