BALDEV RAJ <br/><br/>
PRACTICAL NON DESTRUCTIVE TESTING 

 - 3rd ed., 
 - WARANGAL  NAROSA  2017 
 - 211p 
<br/><br/><label>ISBN: </label>978-8173197970 
<br/><br/><label>Dewey Class. No.: </label>671.52 BAL