Federal coal in the United States ; a digital database of coal ownership status /
Roberts, Laura N. Robinson.
Biewick, Laura H.
Molnia, Carol L.
Geological Survey (U.S.)
[Denver, CO] : U.S. Geological Survey,
[1998]
Caption title.
"February 1998"--P. [1].
U.S. Department of the Interior, U.S. Geological Survey--P. [1].
Includes bibliographical references (p. [6]).
Coal