Mineral resources of the Big Frog wilderness study area and additions, Polk County, Tennessee and Fannin County, Georgia /

Autor Slack, John F., Gazdik, Gertrude C., Dunn, Maynard L.
Vydáno 1982

Mineral resources of the Craggy Mountain wilderness study area and extension, Buncombe County, North Carolina /

Autor Lesure, Frank Gardner, 1927-, Grosz, A. E., Williams, B. B., Gazdik, Gertrude C.
Vydáno 1982

Mineral resources of the Rainbow Lake Wilderness Area and Flynn Lake Wilderness Study Area, Bayfield County, Wisconsin /

Autor Cannon, William F., Cameron, Cornelia C., 1911-1994, Grosz, A. E., Dunn, Maynard L., Gazdik, Gertrude C., Hill, James J.
Vydáno 1981