TY  - BOOK
AU  - Van Rensburg,P.W.J.
ED  - Symposium on the Theoretical Background to the Planning of Open Pit Mines with Special Reference to Slope Stability,
ED  - South African Institute of Mining and Metallurgy.
TI  - Planning open pit mines: proceedings ... 
PY  - 1971///]
CY  - Cape Town
PB  - Balkema (A.A.), for the South African Institute of Mining and Metallurgy
KW  - Strip mining
KW  - Slopes (Soil mechanics)
N1  - At head of title. Open pit mining symposium 1970
ER  -