Search U.S. government technical reports digitized or harvested by TRAIL.
Recovery of manganese from ores of Aroostook County, Maine
Development of a chloride volatilization process for manganese ores from Aroostook County, Maine :progress report
Bulk sampling by diamond drilling :Dudley manganese deposit, Northern District, Aroostook County, Maine
Ammoniacal-ammonium carbonate leaching of manganiferous materials from the southern district, Aroostook County, Maine