Annotated bibliography and index map of salt deposits in the United States /

Autor Lang, Walter B.
Vydáno 1957

Bauxite and kaolin deposits of the Irwinton district Georgia : bauxite deposits of the southeastern United States /

Autor Lang, Walter B., Warren, Walter Cyrus, Thompson, Raymond M., Overstreet, Elizabeth F. 1915-
Vydáno 1965