Field testing the microminer--research continuous miner /

Bibliographic Details
Main Authors:	Johnson, Bradley V., Krepela, Scott W. (Author), Strebig, Kelly C. (Author)
Corporate Authors:	United States. Bureau of Mines, United States. Bureau of Mines. Health and Safety Program/Safety
Format:	Government Document Book
Language:	English
Published:	[Washington] : U.S. Dept. of the Interior, 1975.
Series:	Technical progress report ; 89
Subjects:	Coal-mining machinery. Coal mines and mining > Dust control.

Evans: US Documents (Annex 5th floor)