"Papers presented at the Symposium on Nondestructive Testing Standards II: New Opportunities for Increased World Trade Through Accepted Standards for NDT and Quality, held 9-11 April 1991 in Gaithersburg, Maryland"--Foreword
"Sponsored by ASTM Committee E-7 on Nondestructive Testingand the National Institute of Standards and Technology (NIST) in cooperation with the American Society for Nondestructive Testing and the American Welding Society"--Foreword
