Earth resources. (2nd ed.)
Skinner, Brian J
Earth resources. (2nd ed.) - 2nd. ed - Englewood Cliffs, N.J. FT Prentice-Hall (1976) - 152p. : ill.
0132230089
MINES AND MINERAL RESOURCES
WATER SUPPLY
GEOGRAPHY
POWER RESOURCES
TN 146 Ski
Earth resources. (2nd ed.) - 2nd. ed - Englewood Cliffs, N.J. FT Prentice-Hall (1976) - 152p. : ill.
0132230089
MINES AND MINERAL RESOURCES
WATER SUPPLY
GEOGRAPHY
POWER RESOURCES
TN 146 Ski