PH Diversified, Inc.

year of pub­li­ca­ti­onISBNauthor(s)title
2000978-1-886630-00-0Robert W. SmilieNondestructive Testing Intrtoduction (Programmed Instruction Handbook)
1999978-1-886630-05-5   ''Nondestructive Testing Ultrasonic (Programmed Instruction Handbook:, (Vol. II - Equipment))
  ''978-1-886630-08-6   ''Nondestructive Testing Radiography (Programmed Instruction Handbook Series)