TY - BOOK AU - Skinner, Brian J., TI - Earth resources SN - 0132230909 (pbk.) U1 - 553 22 PY - 1986/// CY - Englewood Cliffs, N.J. PB - Prentice-Hall KW - Mines and mineral resources KW - Power resources KW - Water- supply N1 - Includes bibliographical references and index ER -