Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Bartels, John R.

Comparative laboratory evaluation of resin-grouted roof bolt elements / by John R. Bartels and Deno M. Pappas. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1985. - 20 p. : ill. ; 28 cm. - Report of investigations ; 8924 . - Report of investigations (United States. Bureau of Mines) ; 8924. .

Bibliography: p. 14.

LCCN: 84600267

Subjects--Topical Terms:
Mine roof bolts, Resin--Testing.

LC Class. No.: TN23 TN289.3 / .U43 no. 8924

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

Gov. Doc. Class. No.: I 28.23:8924