Justice F. Grugan books & textbook
Discussion of the Milling Methods Papers Presented at the New York Meeting, Feb, 1925 - No. 1469-B Transactions of the American Institute of Mining and Metallurgical Engineers
Carl R. Davis J. L. Ewing Charles E. Locke H. W. Hardinge H. N. Spicer G. M. Brown Justice F. Grugan R. C. Canby A. J. Weinig Max W. Bowen
Mining and Metallurgy /1925T Pamphlet / 6 Pages
