Mine roof vibrations from underground blasts, Pilot Knob, Mo.

by David E. Siskind ... [et al.]
Bok · Engelsk · 1973

Utgitt	[Washington] : United States Department of the Interior, Bureau of Mines , 1973
Omfang	21 s. : ill.
Emner	Sprengningsarbeider i gruver Sprengningsarbeider - Forente stater