South African Institution of Mechanical Engineers,One day symposium : "nondestructive testing of materials".One day symposium : "nondestructive testing of materials" (25th : 1980 ).Associated Scientific and Technical Societies of S. A.,n. d..
One day symposium : "nondestructive testing of materials" (25th : 1980 )
South African Institution of Mechanical Engineers,One day symposium : "nondestructive testing of materials".Associated Scientific and Technical Societies of S. A.,n. d..
