South African Institute of Mining and Metallurgy & Symposium on the Theoretical Background to the Planning of Open Pit Mines with Special Reference to Slope Stability, Johannesburg, 1970. (1971). Planning open pit mines: Proceedings. Balkema (A.A.), for the South African Institute of Mining and Metallurgy.
Cytowanie według stylu Chicago (wyd. 17)South African Institute of Mining and Metallurgy i Johannesburg Symposium on the Theoretical Background to the Planning of Open Pit Mines with Special Reference to Slope Stability. Planning Open Pit Mines: Proceedings. Cape Town: Balkema (A.A.), for the South African Institute of Mining and Metallurgy, 1971.
Cytowanie według stylu MLA (wyd. 9)South African Institute of Mining and Metallurgy i Johannesburg Symposium on the Theoretical Background to the Planning of Open Pit Mines with Special Reference to Slope Stability. Planning Open Pit Mines: Proceedings. Balkema (A.A.), for the South African Institute of Mining and Metallurgy, 1971.