TY  - BOOK
AU  - Lombardi, John A.
AU  - Jude, Charles V.
CN  - I 28.27:
CY  - [Washington, D.C.?] :
DA  - 1995-
ID  - 195555
KW  - Excavating machinery.
KW  - Longwall mining.
KW  - Coal-mining machinery.
N1  - Description based on pt. 3.
N1  - "In three parts."
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 97-0942-M (pt. 3).
PB  - U.S. Dept. of the Interior, Bureau of Mines,
PP  - [Washington, D.C.?] :
PY  - 1995-
T1  - Mechanical excavation systems
TI  - Mechanical excavation systems
VL  - 9432
ER  -