Prakash, Ravi Non-destructive testing techniques / Ravi Prakash - 1st rev.ed. - New Delhi : New Age; International Publishers, c2010. - x, 134 p. : ill. ; 26 cm. ISBN: 9788122425888 Subjects--Topical Terms: Nondestructive testing.--Testing. Dewey Class. No.: 620.1127 / PRA/N