%O Book %T Non-Destructive Testing: Sample Questions for Conduct of Examinations at Levels 1 and 2 %A %U http://www.dgdingfa.net/publications/8352/non-destructive-testing-sample-questions-for-conduct-of-examinations-at-levels-1-and-2 %D 2011 %I INTERNATIONAL ATOMIC ENERGY AGENCY %C Vienna
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