Wells, P. N. T. (Peter Neil Temple) Physical principles of ultrasonic diagnosis / [by] P.N.T. Wells. - London ; New York : London ; New York : Academic Press, 1969. - Medical physics series ; v. 1 . ISBN: 0127429506 LCCN: 76092398 //r86 Nat. Bib. No.: B*** Subjects--Topical Terms: Diagnosis, Ultrasonic. LC Class. No.: RC78.7.U4 / W45 Dewey Class. No.: 616.07/54