Great Lakes tectonic zone--revisited / by P.K. Sims and W.C. Day (U.S. Geological Survey bulletin ; 1904) (Contributions to Precambrian geology of Lake Superior region ; ch. S)
Great Lakes tectonic zone--revisited / by P.K. Sims and W.C. Day
(U.S. Geological Survey bulletin ; 1904) (Contributions to Precambrian geology of Lake Superior region ; ch. S)
"U.S. Department of the Interior, U.S. Geological Survey"--T.p. versoShipping list no.: 93-0587-PPhysical description for original version: iii, 11 p....