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1
Phosphorite and other apatite-bearing sedimentary rocks in the Precambrian of northern Michigan /
by Cannon, W. F., Klasner, J. S.
Arlington, Va. : U.S. Geological Survey, 1976

Government Document Book
2
The Copper Harbor Conglomerate (Middle Keweenawan) on Isle Royale, Michigan, and its regional implications /
by Wolff, Roger G.
Washington : [for sale by the Supt. of Docs.], U.S. Govt. Print. Off. ; 1973

Government Document Book
3
Phosphorite and other apatite-bearing sedimentary rocks in the Precambrian of northern Michigan /
by Cannon, W. F., Klasner, J. S.
Arlington, Va. : U.S. Geological Survey, 1976

Government Document Book
4
The Portage Lake Volcanics (Middle Keweenawan) on Isle Royale, Michigan /
by Huber, N. King (Norman King), 1926-
Washington : U.S. Govt. Print. Off., 1973

Government Document Book
5
The Marquette Range Supergroup in the Gogebic iron district, Michigan and Wisconsin /
by Schmidt, Robert Gordon, 1924-
Washington : U.S. Govt. Print. Off. : For sale by the Supt. of Docs, GPO, 1980

Government Document Book
6
Geology of the Precambrian W (lower Precambrian) rocks in western Gogebic County, Michigan /
by Schmidt, Robert Gordon, 1924-
Washington : U.S. Govt. Print. Off., 1976

Government Document Book
7
The Marquette Range Supergroup in the Gogebic iron district, Michigan and Wisconsin /
by Schmidt, Robert Gordon, 1924-
Washington : U.S. Govt. Print. Off. : For sale by the Supt. of Docs, GPO, 1980

Government Document Book
8
Stratigraphy of pre-Keweenawan rocks in parts of northern Michigan,
by James, H. L. (Harold Lloyd), 1912-2000
Washington, U.S. Govt. Print. Off., 1958

Government Document Book
9
Geology, geochemistry, and age of Archean and early Proterozoic rocks in the Marenisco-Watersmeet area, Northern Michigan /
Washington : Alexandria, VA : U.S. G.P.O. ; For sale by the Branch of Distribution, U.S. Geological Survey, 1984

Government Document Book
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