Geologic investigation of the Boyertown magnetite deposits in Pennsylvania /
Hawkes, H. E.(Herbert Edwin),1923-
Wedow, Helmuth,1917-
Balsley, J. R.
Washington, [D.C.] : U.S. G.P.O.,
1953.
Five folded maps in pocket.
Includes index.
Bibliography: p. 148.
Magnetite