Montana Mines Corp & Grant, L. A. (1931). Milling methods and costs at Spring Hill concentrator of Montana Mines Corporation, Helena, Mont. [publisher not identified].
Chicago Style (17th ed.) CitationMontana Mines Corp and L. A. Grant. Milling Methods and Costs at Spring Hill Concentrator of Montana Mines Corporation, Helena, Mont. Washington, D.C.: [publisher not identified], 1931.
MLA (9th ed.) CitationMontana Mines Corp and L. A. Grant. Milling Methods and Costs at Spring Hill Concentrator of Montana Mines Corporation, Helena, Mont. [publisher not identified], 1931.
Warning: These citations may not always be 100% accurate.