000			00913nam a2200241u 4500
001			01043161
003			PWmBRO
005			20240602103514.0
008			931118s1971 sa a b 10000 eng
010			_a93044182
090	0		_b622.31/S989p
111	2	0	_aSymposium on the Theoretical Background to the Planning of Open Pit Mines with Special Reference to Slope Stability, _cJohannesburg, _d1970.
245	1	0	_aPlanning open pit mines : _bproceedings ... / _cedited by P. W. J. van Rensburg.
260	0		_aCape Town : _bBalkema (A.A.), for the South African Institute of Mining and Metallurgy, _c[1971]
300			_axvi, 388 p. : _bill.
500			_aAt head of title. Open pit mining symposium 1970.
650		0	_aStrip mining.
650		0	_aSlopes (Soil mechanics).
700	1	0	_aVan Rensburg, P. W. J.
710	2	0	_aSouth African Institute of Mining and Metallurgy.
942			_2ddc
994	0	1	_a096317
999			_c76759 _d76759