Twenty-second Annual Mining Symposium and the 1961 Annual Meeting, Minnesota Section, A.I.M.E., January 8 - 11, 1961.

Những quyển sách tương tự

• Twenty-sixth annual mining symposium and the Thirty-eighth annual meeting of the Minnesota Section, AIME, January 11-13, 1965, Duluth, Minnesota /
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• Twenty-third annual mining symposium and the annual meeting of the Minnesota Section, AIME, January 15-17, 1962, Duluth, Minnesota /
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• Twenty-ninth annual mining symposium and the Forty-first annual meeting of the Minnesota Section, AIME, January 15-17, 1968, Duluth, Minnesota /
  Được phát hành: (1968)