TY  - BOOK
CN  - TN291 .P7
CN  - TN291
CY  - Lexington, Ky. :
DA  - 1970.
ID  - 108872
KW  - Strip mining
PB  - The Council,
PP  - Lexington, Ky. :
PY  - 1970.
T1  - Proceedings of the conference on new approaches to strip mining :the planning concept /
TI  - Proceedings of the conference on new approaches to strip mining :the planning concept /
ER  -