TY  - GEN
TY  - GEN
T1  - Surface mining
A2  - Kennedy, Bruce A.
LA  - eng
PP  - Littleton, Colorado
PB  - Society for Mining, Metallurgy, and Exploration
YR  - 1990
ED  - 2. ed
UL  - https://kansalliskirjasto.finna.fi/Record/vaari.1050609
SN  - 0873351029
ER  -