Richardson, Scott  <br/><br/>
Technical rescuer : trench : levels I and II  
/ Scott Richardson. 
 - Clifton Park, NY  Delmar/Cengage Learning  2010. 
 - xviii, 301p  ill  28cm. 
 - Technical rescuer .
<br/><br/><label>ISBN: </label>9781428335073 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Emergencies<br/>Excavation--Safety measures<br/>Rescue work<br/>Soils<br/>Trenches
<br/><br/><label>Dewey Class. No.: </label>628.92 RIC 2010