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Directory of Mining Enterprises for 1964

Willis M. JohnsJ. M. CheliniR. G. McMurtreyRobert D. GeachUuno Mathias SahinenRalph Irvin SmithRichard L. KonizeskiRobert A. ChadwickAlex BrietkrietzD. C. Lawson

出版	Montana School of Mines, 1964
URL	http://books.google.com.hk/books?id=9md6uwEACAAJ&hl=&source=gbs_api