Yielding steel posts
By: by J.P. Dunford and L.N. Henton.
Contributors: Henton, L. N.
Series: Report of investigations (United States. Bureau of Mines) -- no.9279.
Publisher: Dept. of the Interior
Published: 1989
Place of publication: Washington, DC
Language: eng
Number of pages: 19
Subjects: Ground control (Mining); Columns, Iron and steel.
Notes:  89600164  t_oclc

Bibliogr.

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