Manganese in Oregon,
Libbey, Fay Wilmott, 1882-
Manganese in Oregon, by F. W. Libbey, J. E. Allen, Ray C. Treasher [and] H. K. Lancaster. - [Portland, Or.] 1942. - iii, 78 p. maps. 28 cm. - Oregon. Dept. of Geology and Mineral Industries Bulletin no. 17 . - Oregon. Department of Geology and Mineral Industries. Bulletin no. 17. .
At head of title: State of Oregon. Dept. of Geology and Mineral Industries. Reproduced from type-written copy.
Bibliography: p. 73-74.
gs 42000120
Manganese ores--Oregon.
QE155 / .A3 no. 17
553.46
Manganese in Oregon, by F. W. Libbey, J. E. Allen, Ray C. Treasher [and] H. K. Lancaster. - [Portland, Or.] 1942. - iii, 78 p. maps. 28 cm. - Oregon. Dept. of Geology and Mineral Industries Bulletin no. 17 . - Oregon. Department of Geology and Mineral Industries. Bulletin no. 17. .
At head of title: State of Oregon. Dept. of Geology and Mineral Industries. Reproduced from type-written copy.
Bibliography: p. 73-74.
gs 42000120
Manganese ores--Oregon.
QE155 / .A3 no. 17
553.46