TY  - BOOK
AU  - Richardson, Scott 
TI  - Technical rescuer : trench : levels I and II 
T2  - Technical rescuer
SN  - 9781428335073
U1  - 628.92 RIC 2010 
PY  - 2010///
CY  - Clifton Park, NY
PB  - Delmar/Cengage Learning
KW  - Emergencies
KW  - Excavation
KW  - Safety measures
KW  - Rescue work
KW  - Soils
KW  - Trenches
ER  -