01110cam a22002651 4500 gs 42000338 DLC 20260227111348.0 800402s1942 xx bf s000 0 eng gs 42000338 (OCoLC)6160494 DLC MoU DLC premarc Z6034.U5 M9 016.55786 Mineral resources survey. Bibliography of the geology and mineral resources of Montana. Compiled by Works projects administration, Mineral resources survey. (O.P. 265-91-1-47 W.P. 3622) Cecil R. Waldron, supervisor; Roy H. Earhart, asst. supervisor. Butte, Mont., Montana School of mines, 1942. v, 356 p. 3 pl. (map, 2 tab.) 28 x 22 cm. Montana. State bureau of mines and geology. Memoir no. 21 At head of title: State of Montana. Bureau of mines and geology, Francis A. Thomson, director. Reproduced from typewritten copy. Geology Montana Bibliography. Mines and mineral resources Montana Bibliography. 27857 27857