TY  - BOOK
AU  - Whitmore, Frank C.
CN  - QE1
CN  - QE1
CY  - [Reston, Va.] :
DA  - 1982.
ID  - 51978
KW  - Earth sciences
KW  - Natural resources
PB  - U.S. Geological Survey,
PP  - [Reston, Va.] :
PY  - 1982.
T1  - Resources for the twenty-first century :proceedings of the international centennial symposium of the United States Geological Survey, held at Reston, Virginia, October 14-19, 1979 /
TI  - Resources for the twenty-first century :proceedings of the international centennial symposium of the United States Geological Survey, held at Reston, Virginia, October 14-19, 1979 /
ER  -