Revised check-list of ferns and flowering plants of the Quetico-Superior Wilderness Research Center.

समान संसाधन

• Breeding for resistance to white pine blister rust
  द्वारा: Ahlgren, C. E. (Clifford Elmer), 1922-
  प्रकाशित: (1968)
• The copper mines of lake Superior
  द्वारा: Rickard, T. A. (Thomas Arthur), 1864-
  प्रकाशित: (1905)
• Reports of Wm. A. Burt and Bela Hubbard, esqs., on the geography, topography and geology of the U.S. surveys of the mineral region of the south shore of Lake Superior, for 1845; accompanied by a list of working and organized mining companies; a list of mineral location, and a correct map of the mineral region also a chart of Lake Superior, reduced from the British admiralty survey
  द्वारा: Houghton, J. (Jacob), Jr., 1827-1903
  प्रकाशित: (1846)
• Swineford's history of the Lake Superior iron district, its mines and furnaces
  द्वारा: Swineford, A. P. (Alfred P.), 1834-1909
  प्रकाशित: (1871)
• History and review of copper, iron, silver, slate and other material interests of the south shore of Lake Superior
  द्वारा: Swineford, A. P. (Alfred P.), 1834-1909
  प्रकाशित: (1876)