Anchorage Testing of Mine-Roof Bolts
Subtitle: Part 1. Slotted-Type Bolts.
Contributors: Barry, A.; Panek, L.; Mccormick, J.
Series: Report of investigations (United States. Bureau of Mines) -- 5040
Publisher: s.n
Published: 1954
Place of publication: S.l
Language: eng
Notes: 1