TY  - BOOK
AU  - Turner, Joe M.
TI  - Excavation systems planning, design, and safety
SN  - 9780071498692
U1  - 624.152 
PY  - 2009///
CY  - New York
PB  - Mcgraw-Hill
KW  - Excavating machinery
N1  - Includes Index
ER  -