TY  - BOOK
AU  - Skinner B J
TI  - Earth resources
T2  - Prentice-Hall foundations of eath Science Series
U1  - H413, K91;L6 
PY  - 1976///
CY  - Englewood
PB  - Cliffs Prentice Hall       
KW  -  Earth
KW  - Geology
ER  -