Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Allwes, Richard A.

Arch canopy verification tests / by Richard A. Allwes and C.P. Mangelsdorf. - Washington, D.C. : Bureau of Mines, U.S. Dept. of the Interior, 1990. - ii, 26 p. : ill. ; 28 cm. - Report of investigations; 9306 . - Report of investigations (United States. Bureau of Mines) ; 9306. .

Includes bibliographical references (p. 20).

LCCN: 89600349

Subjects--Topical Terms:
Mine roof control--Testing.
Structural dynamics.

LC Class. No.: TN23 TN288 / .U43 no. 9306

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

Gov. Doc. Class. No.: I 28.23: