Kremkau, F. W. (2006). Diagnostic ultrasound: Principles and instruments (Seventh edition.). Elsevier/Saunders.
Dyfyniad Arddull ChicagoKremkau, Frederick W. Diagnostic Ultrasound: Principles and Instruments. Seventh edition. St. Louis, Mo: Elsevier/Saunders, 2006.
Dyfyniad MLAKremkau, Frederick W. Diagnostic Ultrasound: Principles and Instruments. Seventh edition. Elsevier/Saunders, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.