General Dynamics Series
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Programmed Instruction Book: Introduction to NDT (PI-4-1)
Learn at your own pace with this self-study manual. Originally prepared by General Dynamics Convair Division in cooperation with NASA’s Marshall Space Flight Center, the books, now published by ASNT, provide the information you need to become completely versed in each NDT method.

Classroom Training Book: Radiographic Testing (CT-6-6)
Learn at your own pace with this classroom manual. Originally prepared by General Dynamics Convair Division in cooperation with NASA’s Marshall Space Flight Center, the books, now published by ASNT, provide the information you need to become completely versed in each NDT method.