Schmerr, L. W., & Song, S. (2007). Ultrasonic nondestructive evaluation systems: Models and measurements. Springer Science + Business Media.
Dyfyniad Arddull ChicagoSchmerr, Lester W., and Sung-Jin Song. Ultrasonic Nondestructive Evaluation Systems: Models and Measurements. New York: Springer Science + Business Media, 2007.
Dyfyniad MLASchmerr, Lester W., and Sung-Jin Song. Ultrasonic Nondestructive Evaluation Systems: Models and Measurements. Springer Science + Business Media, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.