Non-destructive testing :  proceeding of the 12th World Conference on Non-Desructive Testing, Amsterdam, The Netherlands, April 23-28, 1989 / 
edited by J. Boogaard and G.M. Van Dijk 
 - Amsterdam :  Elsevier Science Publishers B.V.,  1989 
 - 2v. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Non-destructive testing--Congresses