27th Annual meeting of the Minnesota Section, AIME, and 39th annual Mining Symposium, January 10-12, 1966, Duluth, Minnesota : [proceedings] /

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• 48th Annual meeting of the Minnesota Section, AIME, and 36th annual Mining Symposium, January 15, 16, 17, 1975, Duluth, Minnesota : [proceedings] /
  Հրապարակվել է: (1975)
• Twenty-third annual mining symposium and the annual meeting of the Minnesota Section, AIME, January 15-17, 1962, Duluth, Minnesota /
  Հրապարակվել է: (1962)
• Twenty-fourth annual mining symposium and the annual meeting of the Minnesota Section, AIME, January 14-16, 1963, Duluth, Minnesota /
  Հրապարակվել է: (1963)
• Twenty-eighth annual mining symposium and the Fortieth annual meeting of the Minnesota Section, AIME, January 16-18, 1967, Duluth, Minnesota /
  Հրապարակվել է: (1964)
• Thirtieth annual mining symposium and the Forty-second annual meeting of the Minnesota Section, AIME, January 13-15, 1969, Duluth, Minnesota /
  Հրապարակվել է: (1969)