Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Barczak, Thomas M.

Evaluation of multitimbered wood crib supports / by Thomas M. Barczak and Carol Tasillo. - Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1991. - 11 p. : ill. ; 28 cm. - Report of investigations ; 9341 . - Report of investigations (United States. Bureau of Mines) ; 9341. .

Includes bibliographical references.

LCCN: 90045533

Subjects--Topical Terms:
Mine timbering.
Mine roof control--Testing.

LC Class. No.: TN23 TN289 / .U43 no.9341

Dewey Class. No.: 622 s 622/.28

Gov. Doc. Class. No.: I28.23:9341.