Mechanical excavation systems
By: by John A. Lombardi and Charles V. Jude
Contributors: Jude, Charles V; United States. Bureau of Mines
Series: Information circular -- 9432; Information circular (United States. Bureau of Mines) -- 9432
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1995
Place of publication: [Washington, D.C.?]
Language: eng
Format: Microform
Subjects: Excavating machinery; Longwall mining; Coal-mining machinery
Notes: Description based on pt. 3

"In three parts."

Distributed to depository libraries in microfiche

Shipping list no.: 97-0942-M (pt. 3)

Includes bibliographical references (pt. 3, p. 6)

Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O., [1997- <1> microfiche : negative
Table of contents: value: 3. Environmental applications