Lake Superior Iron Resources
Open-pit Iron Mining, Milling, and Costs, Groveland Mine, the Hanna Mining Co., Dickinson County, Mich
Lake Superior Iron Resources
Core-drill Sampling of Cuyuna-range Manganiferous Iron Formations, Crow Wing County, Minn
Lake Superior Iron Resources
Lake Superior iron resources : preliminary sampling and metallurgical evaluation of Central Mesabi nonmagnetic taconites
Review of the Ammonia Industry and Its Application to North Dakota
Preliminary Sampling and Metallurgical Evaluation of Central Mesabi Nonmagnetic Taconites
Lake Superior Iron Resources
Lake Superior Iron Resources
Technology of Lignitic Coals
Information Circular 8176-8189
Information Circular 7692-7706
Preliminary Samples and Metallurgical Evaluation of Selected Michigan-Wisconsin Iron Formations
Synthetic Mica from Low Cost Raw Materials
Open-pit Mining, Milling, and Costs, Groveland Mine, the Hanna Mining Co., Dickinson County, Mich
Review of the ammonia industry and its application to North Dakota
Preliminary Engineering Studies for Application of the R-N Process to Lake Superior Region Iron Ores
Lake Superior Iron Resources