000			00509pam a2200193a 44500
082			_a669.2 _bD737c2
100			_aDorr, John Van Nostrand
245	1		_aCYANIDATION AND CONCENTRATION OF GOLD AND SILVER ORES
250			_a2nd
260			_aNew York _bMcgraw-Hill _c1950
300			_a511
500			_aBibliography : P. 484-486
650			_aCyanide Process
650			_aGold -- Metallurgy
650			_aSilver -- Metallurgy
700			_aBosqui, Francis L.
964			_gCIRC
997			_aK3590 C
999			_c381470 _d381470