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1

Manganese contents of some sedimentary rocks of Paleozoic age in Virginia /

[Washington, D.C.] : U.S. G.P.O., 1991

Government Document Book

2

Manganese contents of some sedimentary rocks of Paleozoic age in Virginia /

by Force, Eric R.
[Washington] : U.S. Dept. of the Interior, U.S. Geological Survey, 1991

Book

3

Manganese contents of some sedimentary rocks of Paleozoic age in Virginia /

[Washington, D.C.] : U.S. G.P.O., 1991

Government Document Book

4

Insoluble residues of some Paleozoic formations of Missouri, their preparation, characteristics and application,

by Grohskopf, John Gustave, 1903-, McCracken, Earl
Rolla, 1949

Government Document Book

5

Manganese contents of some sedimentary rocks of Paleozoic Age in Virginia /

by Force, Eric R.
[Reston, Va.?] : Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by the Books and Open-File Report Section [distributor, 1991

Government Document Book

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