Assistance Duane Badger NDT. (2004). Liquid Penetrant Testing: Classroom Training Book (Personnel Training Publications Series) (Tái bản lần thứ 8.). American: The American Society for Nondestructive Testing.
Παραπομπή Chicago StyleAssistance Duane Badger NDT. Liquid Penetrant Testing: Classroom Training Book (Personnel Training Publications Series). Tái bản lần thứ 8. American: The American Society for Nondestructive Testing, 2004.
Παραπομπή MLAAssistance Duane Badger NDT. Liquid Penetrant Testing: Classroom Training Book (Personnel Training Publications Series). Tái bản lần thứ 8. American: The American Society for Nondestructive Testing, 2004.
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