APA Style
Krautkramer, J., Krautkramer, H. (1990).
Ultrasonic testing of materials (4th ed.).
Berlin:
Springer-Verlag..
MLA Style
Krautkramer, Josef., Krautkramer, Herbert.
"Ultrasonic testing of materials".
4th ed.
Berlin:
Springer-Verlag.,
1990.
Buku.