Classroom training handbook nondestructive testing liquid penetrant General Dynamics Corporation - 4. ed. - San Diego General Dynamics 1977 - 1 c. res., şkl., şema, tbl. 26 cm. - General Dynamics Corporation Classroom training handbook CT-6-2 . Subjects--Topical Terms: Nondestructive testing.Penetrant inspection--Programmed instruction. Dewey Class. No.: 620.1127 CLA 1977