TY  - BOOK
ED  - United States.
TI  - Surface Mining and Our Environment: a special report to the Nation 
U1  - 333.720973 
PY  - 1967///].
CY  - [Washington]: 
PB  - Department of the Interior, 
KW  - Strip mining
KW  - Environmental aspects
KW  - United States
KW  - Reclamation of land
KW  - Soil conservation
N1  - Includes bibliographical references (p. 122)
ER  -