LANGENBERG, K.et. al. <br/><br/>
ULTRASONIC NONDESTRUCTIVE TESTING OF MATERIALS 

 - NEW YORK  CRC  2012 
 - xvii+754p.,24x16Cms. 
<br/><br/><label>ISBN: </label>1-4398-5588-1 
<br/><br/><label>Dewey Class. No.: </label>620.1127 L276