Instructions for safe working on lines 

 - New Delhi  n.d. 
 - 39 p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Accidents<br/> Occupations<br/>  Dangerous - Safety appliances.<br/>  Industrial - Prevention & Control
<br/><br/><label>Dewey Class. No.: </label>621.3198