000			00551nam a22002057a 4500
999			_c60313 _d60313
005			20200626110903.0
008			200626b ||||| |||| 00| 0 eng d
020			_a0895202530
082			_a622.2 C71O
100			_aCrawford, John T.
245			_aOpen Pit Mine Planning and Design
260			_aNew York _bSociety of Mining Engineers _c1979
300			_aP.367
650			_bMineral Block Models
650			_bAnalytical Design
650			_bCircular Analysis
650			_bOptimization
700			_aHustrulid, William A.
942			_cDBK