Field demonstration of two pneumatic backfilling technologies
By: by Robert C. Dyni, Mackenzie Burnett, and David Philbin.
Contributors: Burnett, Mackenzie.; Philbin, David.
Series: Report of investigations -- 9550.; Report of investigations (United States. Bureau of Mines) -- 9550.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1995
Place of publication: [Washington, D.C.?]
Language: eng
Format: Microform
Number of pages: 15
Subjects: Mine filling -- Pennsylvania.
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 95-0764-M.

Includes bibliographical references (p. 15).

Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1995] 1 microfiche : negative.