Anchorage Testing of Mine-Roof Bolts
Subtitle: Part 2. Expansion-Type, 3/4-Inch Bolts.
Contributors: Barry, A.; Panek, L.; Mccormick, J.
Series: Report of investigations (United States. Bureau of Mines) -- 5194
Publisher: s.n
Published: 1956
Place of publication: S.l
Language: eng
Notes: 1