Confined space entry  permit required  [videorecording] : 

 - 1 videocassette (VHS) (25 min.) :  sd. col. ;  1/2 in. 
<br/><br/><label>ISBN: </label> RM1495.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial safety--United States.