Earth resources / Brian J. Skinner. Skinner, Brian J., 1928- Mines and mineral resources. Power resources. Water-supply. TN153 .S56 1986 353 19 SKE Includes index. Bibliography: p. 167-168. Englewood Cliffs, N.J. : Prentice-Hall, c1986. c1986. 1986 Text vii, 184 p. : eng The Prentice-Hall foundations of earth science series