ID:DA02520511
Pankratz, Louis B.
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by L.B. Pankratz, A.D. Mah, and S.W. Watson
U.S. Dept. of the Interior, Bureau of Mines [1987] Bulletin / United States Department of the Interior, Bureau of Mines 689
Available at 1 libraries
by L.B. Pankratz, J.M. Stuve, and N.A. Gokcen
U.S. Dept. of the Interior, Bureau of Mines , For sale by the Supt. of Docs., U.S. G.P.O. [1984] Bulletin / United States Department of the Interior, Bureau of Mines 677
by L.B. Pankratz
United States Dept. of the Interior, Bureau of Mines : For sale by the Supt. of Docs., U.S. G.P.O. 1984 Bulletin / United States Department of the Interior, Bureau of Mines 674
Available at 2 libraries
by L.B. Pankratz ; with a section on process applications by R.V. Mrazek
U.S. Dept. of the Interior, Bureau of Mines : For sale by U.S. G.P.O. [1982] Bulletin 672