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.
استشهاد بنمط شيكاغوAssistance 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.
MLA استشهادAssistance 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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.