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by Marsh, S. P.
: United States Department of the Interior, 1992.

Series: United States Geological Survey, Open-File Report 92-0353A.

by McHugh, J.B.
: United States Department of the Interior, 1992.

Series: United States Geological Survey, Open File Report ; 92-0303

by Friske, P.W.B.
[Ottawa : National Resources Canada, : Geological Survey of Canada, 2014.

Series: GSC open file : 6433 (rev.)

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by Friske, P.W.B.
[Ottawa : Natural Resources Canada, : Geological Survey of Canada, 2014.

Series: GSC open file ; 7334 (rev.)

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