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.
Citação norma ChicagoAssistance 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.
Citação norma 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.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.