Books by Resources Research Committee
Chemicals from North Dakota li
Chemicals from North Dakota lignite
Industrial opportunities in No
Industrial opportunities in North Dakota
Summary of industrial opportun
Summary of industrial opportunities in North Dakota and adjoining areas
The manufacture of phosphate r
The manufacture of phosphate rock derivatives in North Dakota
Technology of lignite
Technology of lignite
Lignite and U. S. energy suppl
Lignite and U. S. energy supplies