TY  - BOOK
ED  - National Center for Construction Education and Research
TI  - Excavators: module 22304-06 
T2  - Contren learning series
SN  - 9780132289375
AV  - TA735  .N37 2006
PY  - 2006///
CY  - Upper Saddle River, NJ
PB  - NCCER
KW  - Excavating machinery
ER  -